If populations within the same area split into species, the process is known as sympatric speciation. The correct answer is A.
Sympatric speciation is the process by which new species evolve from a single ancestral species while inhabiting the same geographic region. This can occur when a population of organisms becomes isolated from the rest of the species, either by a physical barrier or by a change in the environment.
The isolated population will then evolve independently from the rest of the species, and may eventually become so different that it is no longer able to interbreed with the other members of the species.
Allopatric speciation is the process by which new species evolve from a single ancestral species when they are geographically isolated from each other. This can occur when a population of organisms is separated by a physical barrier, such as a mountain range or a body of water.
The two populations will then evolve independently from each other, and may eventually become so different that they are no longer able to interbreed.
Racial speciation is a term that is no longer used in the scientific community. It was once used to describe the process by which new species evolve from a single ancestral species when they are geographically isolated from each other.
However, this term is now considered to be outdated and inaccurate.
Ecotypical speciation is the process by which new species evolve from a single ancestral species when they are adapted to different ecological niches. This can occur when a population of organisms is separated by a physical barrier, such as a mountain range or a body of water.
The two populations will then evolve independently from each other, and may eventually become so different that they are no longer able to interbreed.
Reproductive speciation is a term that is not used in the scientific community. It is a term that is used by creationists to describe the process by which new species evolve from a single ancestral species.
However, this term is not accepted by the scientific community, as it is not based on any scientific evidence.
Therefore, the correct option is A, sympatric speciation.
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Which documents have phi on them. select all that apply: a. student brain/report sheet c. nor d. assignment sheet
The documents have phi on them is student brain/report sheet. The correct option is a.
What is PHI?According to U.S. law, protected health information is any data about a person's health status, the delivery of healthcare, or payment for healthcare that was generated or gathered by a covered entity.
Protected health information is referred to as PHI. The HIPAA Privacy Rule grants patients a range of rights with regard to personal health information kept by covered companies and offers federal protections for that information.
Any information in a medical file or other designated record set that can be used to uniquely identify a person is considered protected health information (PHI). Student report sheet and student brain are both included in the publications.
Thus, the correct option is a.
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How many atp molecules are produced in the transition period during cellular respiration
32 ATP molecules are produced in the transition period during cellular respiration.
Cellular respiration is a series of metabolic reactions and processes that occur within the cells of an organism, converting chemical energy from nutrients to adenosine triphosphate and releasing waste products.
Cell respiration is a series of metabolic reactions and processes that occur within the cells of an organism to convert chemical energy from nutrients to adenosine triphosphate (ATP) and release waste products.
Cell respiration is the process by which organisms use oxygen to break down food molecules to produce chemical energy for cell function. Cellular respiration occurs not only in animal, plant, and fungal cells but also in algae and other protists.
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When a neuron isn't being
stimulated it sits in a
A. excited
B. sodium pumped
C. resting
potential state.
Correct option is A)
There are electrical and concentration gradients in neurons that induce the sodium ions to enter the cell. The resting potential is maintained because the channels for sodium ions are closed. The membrane remains impermeable to sodium ions in the rest state. The membrane is more permeable to potassium passage. The potassium ions leak through the membrane at a greater rate than sodium enters. There is loss of positively charged ions from the inner part of the cell membrane. The inner part of the membrane carries a relatively more negative charge than the outer part of the cell membrane.
Thus, the correct answer is option A.
A student camping in a wilderness area where Rocky Mountain spotted fever is endemic discovers a tick on her leg. She easily removed it because it had just attached to her leg. What is her risk for contracting RMSF
The risk of contracting RMSF is very low, because Rickettsia is activated only after hours of feeding.
What is Rock Mountain Spotted Fever?A tick bite can transmit the bacterial sickness known as Rocky Mountain spotted fever (RMSF). It results in nausea, vomiting, a spike in temperature of 102 to 103°F, headache, abdominal pain, rash, and aches and pains.
In the US, RMSF is regarded as the most dangerous infection transmitted by ticks. Even though the infection can be properly treated with antibiotics, delaying treatment might result in catastrophic harm to internal organs or even death. By avoiding tick bites or quickly removing a tick that has already bit you, you can lower your risk.
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What is the prominent red blood cell (rbc) morphologic feature found in lead poisoning (plumbism)?
The basophilic stippling is a prominent red blood cell, morphologic feature found in lead poisoning (plumbism).
The basophilic stippling is a frequent manifestation of hematologic disease in the peripheral blood, and it is also observable in bone marrow aspirates.
The lead poisoning inhibits the ability to produce hemoglobin by interfering with enzymatic steps in the heme synthesis pathway and reduce red blood cells, which results in the increasing risk of anemia.
The interference of lead in the development of RBCs results as the exposure to a very small amount of lead greatly changes the surface of the red blood cells. The permeability of water gets altered which results in shrinking and so they aren't capable of swelling up like other normal cells.
The hematologic system is involved with lead poisoning where one can find anemia as a result of it.
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Explain the sequence of events that occur in secondary succession as you would to a friend who had not yet learned about the process
The sequence of events that occur in secondary succession include:
Pioneer speciesIntermediate speciesClimax community.What is Secondary succession?This usually occurs when the primary succession has been disrupted through factors such as wildfire etc.
In this scenario, the existing vegetation is present which gives rise to the species listed above.
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Plssss help answer must be two lines
Answer:
Explanation:
When the chemical 'x' was added to the plant at the time of 5.0, the Chemical (mineral) intake took at a fast pace of .5 sec (as shown in graph).
The Mineral is transported to the whole plant body via Xylem.
a,u
The chemical started to react the plant at 7.5 mins
Bacteria can make their own folic acid, which is required for nucleic acid synthesis, but humans cannot and instead have to ingest folic acid. Trimethoprim is an antimicrobial drug that inhibits one of the enzymes involved in making folic acid. This drug inhibits the growth of bacterial cells but not human cells. This is an example of
This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.
Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.
Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.
These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).
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When a molecule regulates the activity of an enzyme by binding to a site outside of the active site, it is known as a/an
By allosteric regulation an enzyme might be activated or inhibited. When a molecule regulates the activity of an enzyme by binding to a site outside of the active site, it is known as an allosteric molecule.
What is an allosteric molecule?Allosteric regulation occurs when molecules bind to the enzyme on another side, which is not the binding site. This is the allosteric site, and molecules binding to these sites are the allosteric molecules.
Allosteric molecules can be either,
Allosteric inhibitors → inhibit the enzyme activity by not letting the substrate get attached to the enzyme.Allosteric inhibition is non-competitive inhibition because the allosteric molecule does not compete directly with the substrate.
It attaches to the enzyme at another site, impeding the substrate to bind the enzyme and turning off its function.
Allosteric activators → change the active site and make it more efficient to bind the substrate.Allosteric activation is a cooperative process in which the enzyme function is enhanced. Some substrates can even work as allosteric activators for other active binding sites.
Allosteric enzymes can change their conformation, exhibiting active and inactive conformations as a result of substrate binding at the activated center and regulatory molecules at other binding sites -allosteric centers-.
According to this framework, When a molecule regulates the activity of an enzyme by binding to a site outside of the active site, it is known as an allosteric molecule.
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How much faster than normal extinction have humans caused extinction rates to climb?
Record your observations of the roots of the bean and radish plants in the appropriate data chart. Be sure to include a sketch of each plant’s roots.
Data Chart: Bean Plant
Nodules present?
Number of nodules
Number of pink nodules
Number of green nodules
Sketch roots and nodules here or on a separate piece of paper
Data Chart: Radish Plant
Nodules present?
Similarities to bean roots
Differences from bean roots
Sketch roots here or on a separate piece of paper
1) Generally speaking, bean plants have fewer than 100 nodules, soybean plants have several hundred, and peanut plants can have 1,000 nodules or more. Cut-open nodules from a legume displaying the reddish-pink colour of an active, healthy nodule.
2) Both of them have roots that extend far into the cup in an effort to find food to survive. Both of them have nodules.
3) The radish just occupies the cup's centre; the beans basically fill the entire space. not as many nodules as a bean plant.
what are nodules ?
On the roots of plants, particularly legumes, that collaborate with bacteria that fix nitrogen, root nodules can be seen. Capable plants develop a symbiotic association with rhizobia, a host-specific strain of bacteria, when nitrogen is scarce.
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Environmentalists are monitoring an area of tropical forest. They made the following graph to predict the effect of deforestation on this area over the next 20 years. What would a graph of carbon dioxide absorption look like for this forested area
A line that is decreasing would be a graph of carbon dioxide absorption for this forested area.
Environmentalists made the graph to predict the effect of deforestation on this area over the next 20 years. Due to deforestation, the number of trees will be decreased and hence the carbon dioxide absorption also decreases.
Photosynthesis is the process through which plants take in carbon dioxide from the atmosphere, combine it with water and light, and produce carbohydrates.
It is commonly known that the rate of photosynthesis rises as atmospheric CO₂ levels rise.
But if the number of trees decreases, then there will be less photosynthesis and that's why carbon dioxide absorption also decreases.
Hence, A line that is decreasing would be a graph of carbon dioxide absorption for this forested area.
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The principle of competitive exclusion states that two species cannot __________ Multiple Choice coevolve. have the same carrying capacity. be part of the same food chain. occupy the same niche.
The principle of competitive exclusion states that two species cannot occupy the same niche.
What is competitive exclusion?Two species cannot coexist in the same ecological niche for very long without one becoming extinct or being driven out because of competition for limited resources.As an illustration of competitive exclusion, the red squirrels in Britain have displaced the grey squirrels.There were fewer red squirrels as a result of diseases, competitive exclusion, and the removal of hazelnuts.Red squirrels were eventually displaced by gray squirrels, who quickly adjusted to their surroundings.Two species with identical niches cannot survive indefinitely, according to the "competitive exclusion principle" (CEP).The competitive exclusion principle states that when two competing living forms attempt to occupy the same niche, only one outcome is possible: One of them will eradicate the other.Learn more about principle of competitive exclusion here:
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What happens during prophase of meiosis l?
a) spindle fibers reform and attach to the haploid chromosomes
b) cytokinesis begins, the cells pinch off, forming two cells
c) the spindle fibers are made by centrosomes and are attached to the centromeres of the chromosomes
d) the duplicated homologous chromosomes pair up and exchange their chromatid segments
During prophase of meiosis l happens the duplicated homologous chromosomes pair up and exchange their chromatid segments.
What is meiosis I stage?
Meiosis I begins with prophase I, a phase marked by the progressive condensation of chromosomes, exchange of genetic material between non-sister chromatids, formation of the spindle (bundle of microtubules), breakdown of the nuclear envelope and the beginning of the migration of homologous chromosomes towards to the metaphase plate.
In this case, is correct to say that the duplicated homologous chromosomes pair up and exchange their chromatid segments occurs in meiosis I.
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During the relaxation period, Ca2 is re-sequestered into the sarcoplasmic reticulum by Group of answer choices Ca2 ATPases T-tubules Ca2 channels voltage gated channels
During the relaxation period, Ca2 is re-sequestered into the sarcoplasmic reticulum by Ca2+ AtPAse.
During relaxation, Ca2+ is actively transported by the Ca2+ ATPase, from the cytosol into the sarcoplasmic reticulum.Each time we move a muscle, trillions of myosin motors work together to make that movement possible. Calcium ions are used by our muscle cells to coordinate this significant molecular effort.Muscles can unwind using the calcium pump following this frantic burst of calcium-induced contraction. The sarcoplasmic reticulum's membrane contains the pump. Sometimes it is so abundant that it may account for 90% of the protein there. By returning calcium ions to the sarcoplasmic reticulum with the help of ATP, the muscle is able to relax by lowering the calcium concentration surrounding the actin and myosin filaments. Similar pumps can be found in the cell membrane of the majority of cells, and calcium ions are also used for signaling inside other cells.learn more about sarcoplasmic reticulum here: https://brainly.com/question/10596906
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Ca2 is re-sequestered into the sarcoplasmic reticulum during the relaxation period by Ca2+ ATPase.
What do you mean by sarcoplasmic reticulum?Similar to the smooth endoplasmic reticulum in other cells, the sarcoplasmic reticulum (SR) is a membrane-bound structure found in muscle cells. The SR's primary job is to hold calcium ions (Ca2+). The concentration of calcium ions within a cell is 10,000 times lower than the concentration of calcium ions outside the cell, ensuring that calcium ion levels are kept relatively constant.
Fish cardiomyocytes have various types of sarcoplasmic reticulum (SR): junctional SR(jSR). free SR (fSR)The sarcolemmal network or the t-tubular network is peripherally coupled with jSR paperwork. Rows of proteins referred to as "feet" are seen between the 2 membranes in peripheral connections where the jSR profile coincides with the sarcolemma or t-tubule. These proteins function as ryanodine receptor channels that are launched by Ca2+. Because fSR is not closely connected to any other membrane system, it may be found anywhere in the cardiomyocyte.
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Amy and Rosalie are discussing the circulatory system. Amy says the circulatory system moves red and white blood cells through the body. Rosalie says the circulatory system moves carbon dioxide and nutrients through the body. Who is correct
Both the Amy and Rosalie are correct.
What is Circulatory system?
The heart, blood vessels, and blood itself circulate throughout the entire body of a human or other vertebrate through the blood circulatory system.
The blood contains of the red and white blood cells along with plasma and other substitutes of blood.
Also the blood has the function to supply the nutrients to the cells of the body along with transporting carbon dioxide to the alveoli of the lungs.
The circulatory system is a closed pack system with the involvement of various organs like the heart the lungs and plays a crucial role in maintaining the homeostasis of the body.
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Under normal conditions, the adult bone marrow produces approximately 70 billion neutrophils. what is the major function of neutrophils?
Neutrophils is sign of body infection.If you have high neutrophils which is present in human blood then its is known as Neutophilia.
Its a type of white blood cells (WBC) its an important part of immune system which helps body to fights with infection. When micro organisms such as bacteria or viruses are enter in human body then these neutrophils are the first immune cells to respond.
Under normal conditions, the number of neutrophils in healthy person is between 2,500 to 6,000 .If neutrophils are increases of deceases in human body then doctor suggested antibodies.It may eventually go away, or remain as a life - long condition.
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Plants known as Angiosperms first appeared in the Cretaceous and are characterized as having ____________.
What intensity (percent of 1RM) is most closely associated with the training adaptation of muscle hypertrophy? Less than 67 percent of 1RM 67 to 85 percent of 1RM Greater than 85 percent of 1RM 75 to 85 percent of 1RM
The intensity which is most closely associated with the training adaptation of muscle hypertrophy is 67 to 85 percent of 1RM and is denoted as option B.
What is Hypertrophy?This type of muscle growth is observed in the enlargement of its overall size and volume as a result of various forms of stimuli such as external force from different types of load etc.
When performing exercises, load is carried by the muscles which increases its tendency to expand due to the stimulation of more structural proteins to the area as a result of it being stretched. This is however optimal when the individual attains about 67 to 85 percent of one-rep max when performing physical activities.
This is therefore the reason why option B was chosen as the most appropriate choice.
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What two environmental factors influence the shape of a proteins?
What is the term called when the shape of a protein is changed?
What impact does this change in shape have on the proteins ability to function or job?
Make sure to use complete sentences, and write a sentence to answer each question.
The shape of proteins are affected by temperature and pH.
The change of shape of proteins is known as denaturation.
Denaturation of a protein will make it unable to function.
What factors affect protein functions?Proteins are large molecules which are found in living organisms.
The shape of proteins are affected by temperature and pH of their environment.
The change of shape of proteins is known as denaturation.
Denaturation of a protein will make it unable to function since protein function depends on its shape.
In conclusion, protein denaturation affects its function.
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Begin at the ovaries of susie and the testes of billy.track the processes of ovulation for susie and ejaculation of billy.
Ovulation and ejaculation are the processes that involve the release of the female and male gamete for the process of fertilization.
Ovulation
The release of an egg from one of a woman's ovaries is known as ovulation.Ovulation usually lasts for one day and takes place two weeks before a woman anticipates getting her period, in the midst of her menstrual cycle. However, the procedure takes a different amount of time for every woman, and it might even change from month to month. A sperm cell can fertilize an egg when it exits a woman's ovary and enters the fallopian tube. Sperm can survive for three to five days inside a woman's reproductive system.The uterine walls thicken during ovulation in order to accommodate a fertilized egg. On the other hand, if the egg is not fertilized, the uterine lining is lost around two weeks later, which results in menstruation.Ejaculation
Ejaculation, the male reproductive system's discharge of sperm cells and seminal plasma. Sperm are transported from the testicles and the epididymis, where they are stored, to the beginning of the urethra, a hollow tube that runs through the pen!s and transports either sperm or urine. In the second stage, known as the actual ejaculation, the semen is transported through the urethra and expelled from the body.learn more about Ovulation and ejaculation here: https://brainly.com/question/13349245
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Which three statements provide reasons that scientists are considering renewable sources of energy?
These are the three explanations that give reasons that scientists are considering renewable source of energy:
1. Renewable sources are assets implies they are old and reliable sources.
2. Most renewable sources are effectively accessible in nature.
3. Renewable resources are cost-effective in contrast with non-renewable resources.
A renewable energy source implies energy that is feasible, that can't run out, or is unending, similar to the sun. It is additionally named 'alternative energy'. These assets are fit for recovery. The recovery of these sources includes a few biological cycles on a time scale. Sun, water, air, and heat from the earth are sustainable sources that we can use to make solar-based, tidal, wind, and geothermal energy. Renewable energy is additionally called green or eco energy.
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If you suspect corrupted system files are causing issues, what command can be run to verify and restore the corrupted files?
The command can be run to verify and restore the corrupted files SFC /scan now.
Regardless of the reason, it might be, in case you encounter any associated troubles, windows 10 consists of the System File Checker (SFC), a command-line device designed to experiment with the integrity and repair missing or corrupted machine files with running replacements.
Gadget record Checker is an application in Microsoft windows that permits customers to scan for and repair corrupted windows gadget files.
First, log into windows 10. next, click on the quest button on the lowest left, and type the command prompt. while you see the Command set off program indexed, right-click it, then click Run as Administrator. The System File Checker will then begin strolling.
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Parents that are heterozygous for having freckles (dominant) are crossed. Which correctly describes their offspring?
Twenty-five percent have freckles.
Twenty-five percent are Ff.
Seventy-five percent have freckles.
Seventy-five percent are Ff.
Answer:
Seventy-five percent have freckles
Answer:75% have freckles
Explanation:edgenity 2022
The mineral-based pigment called ____, was used by early modern homo sapiens to color many artifacts and features.
The mineral-based pigment called Ochre was used by early modern Homo sapiens to color many artifacts and features.
It was used by early modern homo sapiens to color many artifacts and features. This is the most common use by modern humans, especially archaeologists, as any iron rich rock that can be used as a pigment.
The two effects of dividing food-gathering labor, the camp and the dependence of the gender on each other beyond reproduction, were the first great steps toward modern human culture. Sharing of resources and its concomitant division of labor led to a divergence in both the biological and cultural evolution.
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100. points: out of these choices, what memories are declarative memories, and what are the hardest memories to remember if one has lost its hippocampus?
Answer choices:
Deciding on his favorite ice cream
Recalling a synonym for the opposite of the word "good"
Riding a bicycle
Conveying the nature of his condition
The hardest memories to remember if someone has lost their hippocampus is remembering a synonym for the opposite of the word "good"
Remembering a synonym for the opposite of the word "good"What is the hippocampus?The hippocampus is involved in the formation of new memories and is also associated with learning and emotions. The hippocampus plays a critical role in forming, organizing and storing new memories, as well as connecting certain sensations and emotions to those memories.
With this information, we can conclude that The hippocampus is a part of the brain that is involved in emotions, learning, and memory formation.
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Your classmate has indicated that she wants to experiment with growing tomatoes hydroponically. She is planning to grow the plants in water. What could you suggest to increase her chances of success with the hydroponic method
The hydroponic method involves growing the tomatoes in a nutrient solution which contains all of the essential elements.
The practise of growing plants without the need for soil is known as hydroponics. Flowers, herbs, and vegetables grown hydroponically are planted in inert growing material and are then given nutrient-rich solutions, oxygen, and water throughout the growing process. The use of this technique results in accelerated growth increased yields, and improved quality. When a plant is growing in soil, the roots of the plant are always looking for the nutrients it needs to survive in order to provide for the plant's needs. If the root system of a plant is provided with direct access to water and nutrients, the plant does not need to expend any energy in order to maintain its own life. It is possible to focus the energy that the plant's roots would have spent obtaining food and water toward the growth of the plant instead. As a direct consequence of this, the development of new leaves and the blossoming of fruits and flowers are both stimulated.
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how do adoptions affect a species
Adaptations are passable traits that improve an organism's capacity to endure and procreate in a given environment. An organism can manage in harsh settings, locate food and water, and protect itself by adapting.
What is adaptation?Three definitions of adaptability are connected. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a state that the populace has attained throughout that process.Any heritable characteristic that enables a plant or animal to survive and procreate in its environment is referred to as an adaptation.A method by which a species or organism adapts to its surroundings better. Science calls the shift evolution when a group of organisms does this throughout time. Behavior is the manner in which something often a person or other organism conducts itself or acts toward others.Having particular traits or behaviors that allow an animal or plant to survive in its environment is referred to as adaptation.Learn more about adaption here:
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Which is a common characteristic of both nuclear and conventional electric power plants?
A nuclear and a convention electric power plant has steam turbines.
What are the characteristics of nuclear and conventional electric power plants?Electricity generation is the main objective of conventional coal-fired power plants and nuclear power plants.
In both kinds of power plants, the turbines are typically used to transform thermal energy into electrical power and are both driven by steam. The source of heat used to generate steam is the only fundamental distinction between a nuclear power plant and a normal coal-fired power plant.
The energy generated during combustion, which breaks chemical bonds, is the source of heat in a conventional power plant.
The nuclear fission process, which involves the breaking of nuclear bonds, is the source of heat in nuclear power plants.
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Which answer correctly compares the primary transcript in the nucleus of a eukaryotic cell with the functional mRNA
The size of the primary transcript in the nucleus of the eukaryotic cell is longer than the size of the functional mRNA.
The primary mRNA transcript present in the nucleus is obtained from DNA template sequence transcription. The primary transcript is said to be inactive due to the presence of some non-functional regions (introns) within.
To obtain a functional mRNA from the primary transcript, introns are spliced or removed from the primary transcript with the help of RNA alternative splicing. This leads to the joining of the functional segments (exons) in the mRNA transcript. This joint segment of exons is the modified active form of primary transcript known as the functional mRNA, which is comparatively shorter in length.
Hence, we can conclude that the size of the functional mRNA is shorter than the primary transcript in a eukaryotic cell.
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