Two parents with B blood type can produce a child with either B or O blood type
Answer:
Two parents with B blood type can produce a child with either B or O
Explanation:
Two parents with B blood type can produce a child with either B or O blood type. One parent with A and another with B can produce a child with A, B, AB or O blood types. If one parent has A and another has AB, they can either produce a child with A, B or AB blood types.
After returning from a trip to Africa, tom begins to feel weak & tired, has severe anemia, blood smear reveals protozoan present in his blood. Health care provider tells tom he has malaria. What is the causative agent of his disease?
Tom is suffering from malaria and the causative agent of malaria is Plasmodium malariae.
Malaria is a disease which is caused by Plasmodium malariae, which is a unicellular protozoan. It is a very common disease in the tropical and the subtropical countries like the countries present in the continent of Africa. It not only affects humans but also affects other animals.
Some common symptoms of malaria include fever, weakness, nausea, headache, diarrhea, rapid heart rate, abdominal pain etc. Malaria is spread by the infective female anopheles mosquitoes. If left untreated, malaria can prove to be fatal causing brain damage and even seizures.
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Which of the following causes point mutation?A. DeletionB. InversionC. Both A and BD. None of the above
Point mutation occurs when a single nucleotide is deleted. Inversion is a type of chromosomal mutation in which a chromosomal region is reversed end to end. Correct option (a).
A mutation is a change in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA's genome.
Viral genomes can be made up of either DNA or RNA. Mutations occur as a result of errors in DNA or viral replication, mitosis, or meiosis, or other types of DNA damage (such as pyrimidine dimers caused by ultraviolet radiation exposure), which may then undergo error-prone repair (especially microhomology-mediated end joining), cause an error during other forms of repair or cause an error during replication (translesion synthesis).
Mutations can also occur as a result of the insertion or deletion of DNA segments caused by mobile genetic elements.
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HELP PLSS I AM TOO NON-SMART FOR THIS (20 points)
Where do we get the energy to turn ADP into ATP?
a
From the air we breathe
b
From the sun.
c
From the water we drink.
d
From the food we eat.
Answer: d. from the food we eat
Explanation:
ADP is turned into ATP (energy) when our body has excess energy after we break down the food we have consumed. It stores the excess energy by reattaching a free phosphate molecule to ADP, making it ATP (energy) again.
which diagram shows the correct positions of Earth as it orbits the sun
Answer: The one with a burrito
Explanation:
Meow
what are the limitations to the Earth’s core?
Since the temperature and pressure significantly rise as we travel more inside the planet, we are unable to reach the centre of it. Furthermore, there is currently no technology that can penetrate the depths of the earth.
The gravity train is almost impossible in actuality since no material is known to be able to resist the temperature or pressure (about 3 million atmospheres) at the Earth's core.
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What is the difference between a gliding joint and a condyloid joint?
A synovial joint that allows for sliding or gliding motion is called a gliding joint. It is constructed between two bones that contact on flat articular surfaces. Condyloid joints often referred to as ellipsoid joints, are made of a bone with an egg-like shape called a condyle that fits into a cavity with a similar shape.
The wrist joint is an illustration of a gliding joint. The joints between two vertebrae, ankle joints, acromioclavicular joints, etc. are examples of other gliding joints.
Condyloid joints often referred to as ellipsoid joints, are made of a bone with an egg-like shape called a condyle that fits into a cavity with a similar shape. Condyloid joints only provide forward-backward and side-to-side movement; rotation is not permitted, despite the fact that it sounds similar to a ball and socket joint.
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How many oxygen atoms are in two molecules?
Two oxygen molecules would contain four oxygen atoms.
Chemical elements are substances that only contain one kind of atom, such as oxygen. Since oxygen has an atomic number of 8 and the official chemical symbol O, an oxygen atom has eight protons in its nucleus. At room temperature, oxygen is a gas that has no flavor, color, or odor. In nature, oxygen exists as a molecule. To create dioxygen, or O₂, two oxygen atoms must make a covalent double bond with one another.
in one molecule of oxygen there are 2 oxygen atoms, so there would be Two oxygen molecules would contain four oxygen atoms.
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country music star going through gender reassignment.
a. true
b. false
It is false that a country music star goes through gender reassignment because its' totally there wish to reassign their gender or not.
The term "gender reassignment" applies to a transgender person and is a legal concept. Any person who has suggested, begun, or finished a procedure to switch their sex is included. SRS is not morally or scientifically suitable since it contravenes fundamental moral and legal norms.
Preferably, compositions are given a music star emblem based on how well they performed. The popularity of the song and whether it is an often famous song on a record are the main factors here. The tracks on a record that are performed the most frequently are typically given stars.
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Explain how just four nitrogen bases are able to communicate such a diverse instructions
Four nitrogen bases are able to communicate such diverse instructions because they are ordered in specific linear sequences that determine the expression of all proteins observed in an organism.
What are the four nitrogen bases in the nucleotides of the DNA sequence?The four nitrogen bases in the nucleotides of the DNA sequence are the types of bases to form the four types of nucleotides, which corresponds to Adenine or A, Guanine or G, Cytisine or C and Thymine or T. The linear order of nucleotides in the DNA sequence dictates the instructions to generate virtually any type of protein in the organisms.
Therefore, with this data, we can see that the four nitrogen bases in the nucleotides of the DNA sequence are required to form all types of proteins which depends on the linear order of nucleotides in DNA.
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If chemical signals in the cytoplasm control the progression of a cell to the m phase.
The fusing of a cell in the G1 phase with a cell in the early M phase would most chromatin condensation in preparation of nuclear division in both cells if chemical cues in the cytoplasm.
What occurs in the M phase and how is it regulated?During the M phase, cell division takes place, consisting first of nuclear division (mitosis), then of cytoplasmic division (cytokinesis).
Do cytoplasmic molecular signals influence how the cell cycle behaves?Cell cycle regulation is done via molecular signals in the cytoplasm. The majority of these chemical signals are hydrophobic compounds, such as steroid hormones, that can pass through the cell membrane and connect to their receptors in the cytoplasm.
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The complete question is -
If chemical signals in the cytoplasm control the progression of a cell to the M phase of the cell cycle, then fusion of a cell in G1 with a cell in early M phase would most likely result in the ?
Charles darwin originally published the idea that all species have descended over time from common ancestors. This idea is known as evolution. Evolution is best categorized as.
Evolution is best categorized as a scientific theory supported by evidence.
The process of evolution resulted in the emergence of many species of living things in this world. All living things have different species and these differences can be proof that the theory of evolution occurs in nature.
Darwin's theory of evolution is more accepted than Lamarck's theory of evolution because there is evidence of evolution that supports Darwin's theory, such as the geographic distribution of species (biogeography), the fossil record, comparative anatomy, and molecular biology research.
Some things that can be used as clues or evidence of the evolutionary process include fossils, anatomical comparisons, embryological comparisons, biochemical comparisons, remaining organs (vestigial organs), and domestication.
From the description above, evolution is best categorized as a scientific theory that is supported by evidence.
This question is a multiple choice:
A. a scientific hypothesis that has not been researched.
B. an unproven observation about a small number of organisms.
C. a scientific fact that has not been modified since Darwin's time.
D. a scientific theory that is supported by evidence.
The correct answer is D.
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Are r-selected species short lived?
R-selected species are indeed short-lived.
Species whose populations are governed by their biotic potential are called r-selected species.
Biotic potential is defined to be the maximum reproductive capacity of a species under optimum environmental conditions. Environmental resistance, which includes any factor that holds back the increase in number of the population, restricts full expression of the biotic potential of a species.
The defining characteristic of r-selected species is the production of numerous small offspring, followed by exponential population growth. R-selected species mature quickly (thus require little or even no parental care), require short gestation periods, and are short-lived. Members of this group, unlike K-selected species, are capable of reproduction at a relatively young age, but many offspring die before they reach reproductive age.
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In this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below.
What is the effect of…
_______
…on…
_____
The question that is being answered by doing this observation is:
What is the effect of a change in the environment on the feeding ability of birds with different beaks?
What is an observation in science?An observation is any information gathered during an experiment.
Through our senses, we can learn about the outside world, and we can also record information using tools and instruments from science.
An observation in science aims to answer a particular question or inquiry through experiments.
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What feedback exists between the evolution of life and the formation of soil
when a seed has a different germination rate when planted in soil conditioned by its own genotype ('home') than the same soil conditioned with another genotype ('away').
What is the relationship between soil and life?The soil is used by humans and other living things to break down these waste products into new resources. Other living organisms use these new materials. When a living thing perishes, its remains fall to the ground where biological and chemical processes transform them into fresh materials and sustenance for other living things. In addition to giving plants and trees nourishment, water, and minerals, soil also holds carbon and is home to countless numbers of insects, rodents, bacteria, and other microorganisms. Plants are consumed by animals, who then leave behind waste and finally die, adding to the soil. The soil starts to shift as a result.To learn more about soil refer to:
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A student made a model of an ecosystem in an aquarium.
The student used potting soil to represent land, water to
represent a pond, and a lamp to represent the Sun.
One limitation of the model is that it does not represent how living things
interact with the nonliving parts of an ecosystem. Which way of refining the model would best address this limitation?
A. Adding a fan that can circulate the air
B. Placing some aquatic plants in the water
C. Putting a timer on the lamp so that it turns off at night
D. Adding a water pump that can circulate the water
Placing some aquatic plants in the water is the refining the model would best address this limitation.
What is Ecosystem?An ecosystem is a region where different species of plants, animals, and other organisms coexist in harmony with the environment, including the climate and geography.
An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors. Abiotic variables, or nonliving components, coexist with biotic components in ecosystems.
Every component of an ecosystem is directly or indirectly dependent upon every other component. An ecosystem's temperature changes frequently have an impact on the types of plants that may flourish there, for example.
Therefore, Placing some aquatic plants in the water is the refining the model would best address this limitation.
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Sherman suggests that reproduction always creates individuals with adaptive traits. Does this seem correct? why or why not?.
The mechanism of evolution that produces living organisms that are adaptable to their circumstances is natural selection. Over millions of years, this mechanism has shaped the beaks, feet, and feathers of birds, enhancing their ability to survive in their habitats.
What does the term "adaptive characteristic" mean?A characteristic is a feature of the entire organism's developmental pattern or a specific part of it. Therefore, an adaptive trait is a feature of the developmental pattern that makes it easier for its carrier to survive and/or reproduce in a series of different situations.
How does reproduction work?Reproduction is a biological process in which an organism produces children that are genetically identical to itself. The offspring develop, reach adulthood, and then have more children. Consequently, there is a cycle of genesis, growth, and demise. Generation after generation, a species can survive thanks to reproduction.
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Look at the diagram. What evidence can you find to show that the Pacific Plate is moving, but the hot spot is not?
(A) The diagram shows active volcanoes on the other islands.
(B) Hawaii is the only island that is on the hot spot.
(C) The diagram shows that the rocks on the other islands are younger.
(D) The ocean water keeps the other islands cooler.
The hot area is not moving, but the diagram depicts active volcanoes upon that neighboring islands that might be used to demonstrate that its Pacific Plate is moving.
Describe a volcano.An breach in the crust of the Earth throughout which lava, debris, and gases erupt is known as a volcano. The crescent landform that was created over time by numerous eruptions is also included in the word.
Why do volcanoes form?Water from subducting plate can be forced up, off, and down into mantle wedge during subduction. As a result, the mantle's melting point decreases and it melts, forming magma. A volcano will be created when this magma rises and leaks into the crust.
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A compound has a molecular weight of 112. 124 atomic mass units and the empirical formula c3h4o. What is the molecular formula of the compound? use the periodic table to help you.
The molecular formula of the compound (has a molecular weight of 112. 124 atomic mass units and the empirical formula C₃H₄O = C₆H₈O₂.
A compound's molecular formula describes the composition and number of entities present in that molecule.
The following steps are involved in the prediction of a molecular formula:
Determine the molar mass :
C₃H₄O molar mass = 3 (12) + 4 (1) + 16
= 56
Divide the given mass by the empirical formula's calculated mass:
(112 x 124)/56
= 2
Then, multiplying the subscripts of the given empirical formula by this whole number yields:
The molecular formula is (C₃H₄O)₂= C₆H₈O₂.
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Which of the following is not an observation or inference that Darwin made while developing his theory of evolution
Which is the end result of cytokinesis from a cell undergoing mitosis?one cell that has two identical copies of dnaone cell that has two different copies of dnatwo cells that have two identical copies of dnatwo cells that have two different copies of dna.
The end result of cytokinesis from a cell undergoing mitosis is two cells that have identical copies of DNA. Cytokinesis is the final step of mitosis where the cell divides its cytoplasm and organelles into two identical daughter cells. Each of the daughter cells will have a complete set of chromosomes, which contains an identical copy of the cell's DNA. This ensures that each daughter cell will have the genetic information necessary to function as a separate, fully-functioning cell.
When does DNA replication occur.
Answer:
S Phase
Explanation:
DNA replication occurs during the S Phase of cell division and they must replicate before they can divide.
Classify the statements as describing a gene, a chromosome, or a genome.
Gene Chromosome
Genome Each organism has one Determines a particular characteristic of an organism Describes the collection of all of the replicable genetic material of a cell or organism Codes for a specific Is the largest Is a linear or protein or RNA molecule in the cell circular molecule Encodes all the heritable Is a unit of DNA carrying genetic traits of an organism information encoded in genes Is a contiguous Functions to package, organize, Acts as the basic piece of DNA and regulate access to DNA unit of heredity May include plasmids
Classification of statements according to whether they describe a gene, a chromosome or a genome:
Determines a particular characteristic of an organism. Correct answer: gene. is a continguous unit of DNA carrying genetic information encoded in genes. Correct answer: chromosomemay include plasmids. Correct answer: geneis a linear or circular molecule. Correct answer: genomeis the largest molecule in the cell. Correct answer: genomeeach organism has one. Correct answer: genomeencodes a specific RNA or protein. Correct answer: genedescribes the collection of all of the replicable genetic material of a cell or organism. Correct answer: genomefunctions to package, organize and regulate access to DNA. Correct answer: chromosomecomprises the physical unit that results in gene linkage. Correct answer: chromosomeencodes all the heritable traits of an organism. Correct answer: genomects as the basic unit of heredity. Correct answer: geneA gene is a unit of genetic information composed of a segment of DNA or RNA that codes for a particular protein or trait.
A chromosome is a structure composed of DNA and proteins that carries genetic information in the form of genes.
A genome is the complete set of genetic information for an organism, including all of its genes.
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radioactive decay → heat circulation → plate movement → ________
Slow mantle currents generated by the Earth's interior heat are what move plates. Heat that remains from Earth's origin as well as heat produced by the radioactive decay of atoms inside the planet.
What does the heat produced by radioactive materials decay look like?The heat produced by radioactive decay is referred to as decay heat. This heat is a result of radiation's impact on the materials: gamma, beta, and alpha radiation's energy is transformed into atoms' thermal motion.
What does radioactive decay mean?Ionizing radiation is a health risk because it can harm the atoms in living things, damaging tissue and the DNA in genes. the atomic fragments.
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what does it mean if the 23rd pair of chromosomes reads XY in humans
A. female
B. male
C. mutated
If the 23rd pair of chromosomes read XY in humans then is read as a B. male because in humans we have two sex chromosomes.
What are the sex chromosomes X and Y in the human species?The sex chromosomes X and Y in the human species are two different chromosomes when compared to the autosomal somatic chromosomes which specify the sex of an individual, If an individual inherits two X chromosomes then it is female, but if an individual inherits one Y chromosome and a Y chromosome then it is male.
Therefore, with this data, we can see that the sex chromosomes X and Y in the human species are those chromosomes that specify the sex in humans and the presence of one Y chromosome leads to the generation of an individual with male sex features instead of autosomal chromosomes.
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What “virus-specific” structures and enzymes could be exploited by potential drugs that we could take?
The “virus-specific” structures and enzymes that could be exploited by potential drugs that we could take are Envelope proteins, Reverse transcriptase, Protease, RNA polymerase, Hemagglutinin Fusion inhibitors, etc.
What are virus-specific structures and enzymes?This refers to some virus-specific structures and enzymes that could be targeted by potential drugs.
Some examples include:
Envelope proteins: Many viruses, such as HIV and influenza, have an envelope that surrounds their genetic material. Drugs that target these envelope proteins can prevent the virus from entering host cells and reproducing.Reverse transcriptase: Some viruses, such as HIV, use an enzyme called reverse transcriptase to convert their RNA genome into DNA. Drugs that inhibit reverse transcriptase can prevent the virus from replicating.Protease: Many viruses, such as HIV and Hepatitis C, use an enzyme called protease to cleave viral proteins and release new viral particles. Drugs that inhibit protease can prevent the virus from replicating.RNA polymerase: Some viruses, such as coronaviruses, use an enzyme called RNA polymerase to replicate their genetic material. Drugs that inhibit RNA polymerase can prevent the virus from replicating.Hemagglutinin: Some viruses, such as the influenza virus, have a protein called hemagglutinin which allows the virus to attach to host cells. Drugs that target this protein can prevent the virus from entering host cells and reproducing.Fusion inhibitors: Some viruses, such as the coronaviruses, use a protein called spike protein to fuse with host cells, by targeting this protein drugs can prevent the virus from entering host cells and reproducing.Note: Many of these drugs are in the development stage and many of them are not yet approved for human use.
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describe the role of chlorophylls in the biochemical pathways of photosynthesis
The role of chlorophyll in the biochemical pathway of photosynthesis is to absorb solar energy, trigger CO2 fixation to produce carbohydrates, and provide energy for the ecosystem as a whole.
What is chlorophyll?Chlorophyll is called the green substance of leaves. Chlorophyll molecules are able to absorb red, blue, and violet light. Until it reflects the yellowish-green color that humans often see. Chlorophyll is needed by the body for photosynthesis in addition to water, carbon dioxide, and light.
Chlorophyll is located in plant chloroplasts, which are tiny structures in plant cells. This is where photosynthesis takes place. The job of chlorophyll in plants is to absorb light, which is usually sunlight. The energy absorbed from light is transferred to two types of energy storage molecules.
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Is RR heterozygous dominant?
The heterozygous genotype (Rr) has the dominant round seed shape as its recessive allele (r) is masked in the phenotype.
Gene traitsgenes have the following characteristics:
1. Contains genetic information.
2. Each gene has different tasks and functions.
3. At the time of division of mitosis and meiosis can hold duplication.
4. Determined by the arrangement of nitrogen base combinations.
5. As a particle contained in the chromosome.
Gene symbolReporting from various sources, here are the gene symbols of each type:
1. Dominant Gene
Dominant genes are genes that can mask the expression of other genes, so that the traits that are carried appear in individuals. Dominant genes are represented by a capital letter, such as A and W.
2. Recessive Genes
A recessive gene is a gene that is covered by a dominant gene so that the trait it carries does not appear in its offspring. Recessive genes are written with lowercase letters, for example a and w.
3. Heterozygous Gene
Heterozygous gene is a fusion of two genes from sperm and egg cells. Heterozygous genes are symbolized by two letters consisting of one capital letter and one lowercase letter, for example Aa and Ww.
4. Homozygous Dominant Gene
Homozygous dominant gene is a combination of two dominant genes from male sex cells and female sex cells. Dominant homozygous genes are represented by two capital letters, such as AA and WW.
5. Recessive Homozygous Gene
Recessive homozygous gene is the result of the fusion of two recessive genes from the two sex cells. The symbol for a homozygous recessive gene is two lowercase letters, for example aa and ww.
6. Homologous Chromosomes
Homologous chromosomes are chromosomes from the female parent that are similar in shape to the chromosomes from the male parent.
7. Phenotype
Phenotypes are hereditary traits that can be seen directly. Examples are high, low, color, and shape.
8. Genotype
Genotypes are hereditary traits that cannot be seen. Like the symbols AA, Aa, and aa.
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8. Energy is transferred in several different ways during the
process of cellular respiration. Give two examples of ways
that energy is transferred during this process.
During cellular respiration glucose and oxygen are converted into carbon dioxide and water and the energy is transferred to ATP.
How energy is transferred during the process of cellular respiration?It is possible to catch and put to use the energy released when electrons transition to a lower-energy state. During cellular respiration, electrons from glucose steadily proceed down the electron transport chain in the direction of oxygen, passing through states with progressively lower energies and releasing energy at each stage. Both aerobic (using oxygen) and anaerobic cellular respiration are possible (without oxygen). When glucose and oxygen interact during aerobic cellular respiration, ATP is created that the cell can use. As byproducts, water and carbon dioxide are produced. The most fundamental type of carbohydrate, monosaccharide glucose, can be mixed with oxygen, for instance. Potential energy is released when the oxygen receives the high-energy electrons that are present in the glucose.To learn more about cellular respiration refer to:
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Of all the types of chromosomal mutations you have studied in this lesson, only one does not lose the genetic information of the chromosome. Which one is it? Explain the impact of this mutation?
Answer:
In biology, a chromosomal mutation is the mutation of the chromosomal segments of the DNA strands. This can occur when the number of chromosomes or chromosome sets (ploidy) increases or decreases in a genome as well as when changes in chromosomes structure occur. Irregularities or accidents when cell division happens as well as during chromosomal crossing over or fertilization can all be causes of chromosomal mutation.
All types of chromosomes can undergo chromosomal mutation. Chromosomal mutation examples include chromosome deletion, duplication, inversion, and translation. These are known to cause different kinds of genetic and chromosomal mutation diseases.
For instance, chromosomal mutations on chromosome 4 have been investigated and proven to be the source of numerous genetic disorders and even cancer in humans. This includes conditions like narcolepsy and Parkinson’s disease.
Predict the two possible outcomes if temperature or ph were changed within the molecular control system of cell division.
Answer:
The mitosis process will either be decreased or increased depending on how the temperature changes
Explanation: