the dye __ will be used to see the bands of dna on the gel.
An scientist observes a population of cheetahs on the plains in southern Africa and noticed that cheetahs have very little genetic variation. The scientists claims that the cheetahs are susceptible to extinction as a result of climate change. What is the name of the effect the scientist observed and why is it a concern ?(1 point)
Disaster effect, because the cheetahs have mutated to produce ineffective proteins
Frameshift mutation, because it only produces ineffective proteins.
Substitution mutation, because the these mutations cannot be passed to offspring
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses
Answer:
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses
Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses.
There is a decline in the population size in because bottleneck effect limit the genetic diversity of the species as only a small part of original population is there.What is bottleneck effect?The bottleneck effect refers to the way in which a reduction and subsequent increase in population's size affects the distribution of genetic variation among its individual.
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Urgent Care Centers are extremely busy during cold and flu season. The influenza virus can causes symptoms such as a cough, high fever, aches, and weakness. It can be very uncomfortable for patients and causes loss of time at work. What is the best way for a person to protect themself from getting the flu?
Group of answer choices
Obtain a immunization before flu season begins.
Drink a lot of fluids and get plenty of rest.
Begin taking antibiotics as soon as symptoms begin.
Take antiviral medication as soon as fever is detected.
Answer:
Obtain a immunization before flu season begins
Explanation:
The question asks for prevention and the other answers sTate what to do when you already have it.
which part of the flower or needed to make seeds?
Answer:
Ovary is the part of the flower which is needed to make seeds
what is the process of producing energy in living organisms
Answer:
cellular respiration
Explanation:
Osteoclasts are responsible for which of the following processes?
Osteogenesis
*Resorption
Ossification
Oseogenesis
Answer:
b. Resorption
Explanation: is correct
help plsss
Explain the effect of viruses on living organisms.
Answer:
Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce
Which two atoms form an ionic bond?
A.sodium and bromine
B. two sodium atoms
C. two oxygen atoms
D fluorine and chlorine
Answer:
sodium and bromine
Explanation:
The one valence electron from sodium would be transferred to the bromine atom so they can both have an octet.
Which two atoms form an ionic bond?
Answer : A
Explanation : Ionic bond is a type of chemical bond and binds the chemical molecules together. Ionic bond is formed by the transfer of electrons from an electropositive element ( metal) to the electronegative element (non metal).
Sodium is an electropositive element and contains one positive charge. Bromine is an electronegative element with a single negative charge over it. Sodium gives the electron to bromine and results in the formation of ionic bond.
Thus, the correct answer is option (C).
Hope this helps you!
what single factor limits the size that most cells are able to attain
Answer:
The surface-volume ratio.
what are two terms used to describe organisms such as humans
(ecology)
Answer:
Carnivores omnivores reproducers maybe..lol
if an organism is a protostome, what else can you conclude about its body plan?
Answer:
It has two tissue layers.
Explanation:
When is passive transport used.
Answer:
When a molecule moves down its concentration gradient is it participating in passive transport
Based on this diagram label the positive and negative sides of the DNA fingerprint with a + and – sign.
We can say that the top of the gel, where the DNA samples were applied, is the negative side, while the bottom of the gel is the positive side.
We can arrive at this answer because:
DNA is a negatively charged molecule.For this reason, when DNA is applied in an electrophoresis vat, it must be placed in the negatively charged portion.This is because the electrophoresis vat will allow an electrical discharge to pass through the vat and drag the DNA from the negative side to the positive side.This movement allows the DNA to present a series of fragments of different sizes that will be observed in a fingerprint, such as the one presented in the question above.
In the figure below you can more accurately see the positive and negative sides.
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The duplicity theory of vision holds that a single receptor system cannot produce both high sensitivity and high resolution. What does this theory explain
Given what we know about the Duplicity theory, we can confirm that this theory attempts to explain the functions of the Rods and Cones present in the human eye.
The Duplicity theory of vision aims to provide insight as to the functions of the Rods and Cones in the human eye and how each of these contributes to our everyday vision. The theory also centers around the difference in activity between these two structures.
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what is the proton gradient in cellular respiration?
Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.
A proton gradient is a difference in the concentration of protons (H+) across a membrane. In cellular respiration, a proton gradient is created by the electron transport chain (ETC) in the mitochondria.
The ETC is a series of proteins that shuttle electrons from NADH and FADH2 to oxygen. As the electrons are shuttled, they lose energy, which is used to pump protons out of the mitochondrial matrix into the intermembrane space.
This creates a concentration gradient, with more protons in the intermembrane space than in the mitochondrial matrix.
The proton gradient is used to power ATP synthesis. The enzyme ATP synthase, which is located in the inner mitochondrial membrane, uses the energy of the proton gradient to drive the synthesis of ATP from ADP and inorganic phosphate (Pi).
The proton gradient is a key part of cellular respiration, and it is essential for the production of ATP. Without the proton gradient, ATP synthesis would not be possible, and cells would not be able to produce the energy they need to function.
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A chemical reaction in a living cell occurs in the presence of a specific protein molecule. The concentration of this protein molecule remains the same before and after the reaction. This protein molecule is most likely
1. a coenzyme
2. a substrate
3. an enzyme
4. an acid
Answer:
c
Explanation:
what gas exchange happens in the respiratory system and what is the large blood vessel that carries blood from the heart to the lungs.
Answer:
Explanation:
The pulmonary artery is a big artery that comes from the heart. It splits into two main branches, and brings blood from the heart to the lungs. At the lungs, the blood picks up oxygen and drops off carbon dioxide. The blood then returns to the heart through the pulmonary veins.
what should you do if you are not sure that an organism is a plant
Answer:
An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and maintain homeostasis.
Explanation:
An organism is a plant.
If you are not sure that an organism is a plant, you should observe and research the characteristics and behaviors of the organism to determine its classification.
What is the five kingdom classification?The five kingdom classification is a system of classifying living organisms into five major categories based on their fundamental characteristics. The five kingdoms are:
Monera: This kingdom includes single-celled prokaryotic organisms, such as bacteria.Protista: This kingdom includes single-celled eukaryotic organisms, such as algae and protozoa.Fungi: This kingdom includes multicellular, heterotrophic organisms, such as mushrooms and yeasts.Plantae: This kingdom includes multicellular, autotrophic organisms that are characterized by their ability to photosynthesize, such as trees, flowers, and grasses.Animalia: This kingdom includes multicellular, heterotrophic organisms that are characterized by their ability to move and sense their environment, such as animals and humans.Learn more about classification, here:
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Cellular Respiration has three main steps: Glycolysis, the Krebs Cycle and Oxidative phosphorylation/electron transport chain. What are the overall functions of each of these steps
Answer:
Cellular Respiration has three main steps: Glycolysis, the Krebs Cycle and Oxidative phosphorylation/electron transport chain.
Explanation:
phorylation/electron transport chain. What are the overall functions of each of these steps kjn
What is the production of white blood cells, red blood cells, and platelets called?
*Hematopoiesis
Hematogenesis
Hemophobia
Hematosynthesis
Answer:
a. Hematopoiesis
Explanation: is correct
What type of cell is shown above?
A.
prokaryotic
B.
plant
C.
eukaryotic
D.
animal
Answer:
A
Explanation:
The awnser is A ___________
A place where animals and plants are protected is called
A) an ecosystem
B) a refuge
C) a sanctuary
D) both B and C
Hello! can someone help me w this pls
The mutation shown in the sequence below can be categorized as which type?
Original DNA sequence:
A T A C G G T A G C A A
T A T G C C A T C G T T
Mutated DNA sequence:
A T C G G T A G C A A
T A G C C A T C G A A(1 point)
insertion mutation
deletion mutation
chromosomal mutation
substitution mutation
Answer:
Deletion
Explanation:
because one base is deleted.
The mutation from A T A C G G T A G C A A to A T C G G T A G C A A is a deletion mutation.
MUTATION:Mutation is referred to as any change in the nucleotide sequence of DNA molecule. Mutation can be of different types namely: deletion mutation, substitution, insertion mutation etc. Deletion mutation is a kind of mutation that involves the removal of one or more nucleotide base from the DNA sequence. According to this question, an original sequence is given as: A T A C G G T A G C A A, mutation occurs and results in the following sequence: A T C G G T A G C A A. Nucleotide base "A" was removed from this sequence, hence, it is an example of deletion mutation.Learn more about deletion mutation at: https://brainly.com/question/6477597?referrer=searchResults
If annual rainfall decreases and causes ponds in this habitat to become shallower, after many generations, how might the traits of these water lilies change?.
The water lilies might adjust to requiring less water overall, even for drinking.
What is adaptation?According to the idea of evolution, adaptation is the biological mechanism that allows organisms to adjust to new settings or to changes in the environment in which they are already living.
It is absolutely necessary for living things to be able to adapt in order to stay alive. Animals who are unable to adjust to the shifting conditions of their habitat ultimately perish. These alterations are the product of shifts in genetic make-up. The mutant genes are passed down from the animals that make it through the ordeal to the next generation.
Therefore, the water lilies might adjust to requiring less water overall, even for drinking.
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what do you understand by the term reproductionwhat do you understand by the term reproduction
Answer:
Reproduction is the manufacturing of offspring. There are primary forms: sexual and asexual reproduction. In sexual reproduction, an organism combines the genetic statistics from each of its mother and father and is genetically unique. In asexual reproduction, one parent copies itself to shape a genetically same offspring.
Explanation:
Make sure to rewrite it in your own words, don't get caught cheating (for those who are.)
what factors are examined by the field of demography? check all that apply.
Answer:
Demography is the statistical study of human populations. Demography examines the size, structure, and movements of populations over space and time. It uses methods from history, economics, anthropology, sociology, and other fields.
The state of the atmosphere at any given time and place is referred to as ______________
Answer:
Weather
Explanation:
Search The state of the atmosphere at any given time and place is referred to as
Answer:
Weather
Explanation:
Weather is defined as the state of the atmosphere at a given time and place. Hope this helps you!
6. As the lunar cycle progresses from the full moon to new moon the light will appear to _________.
7. The “growing light” that appears during the first half of the lunar cycle is referred to as __________.
8. The ___________ phase occurs at 21 days into the cycle and shows the left half of the moon illuminated.
9. In a crescent stage __________ than half of the Moon appears illuminated and during a gibbous stage __________ than half appears illuminated.
-I know this is asking for a lot but I really don’t know-
-I need the answers asap!-
-thanks in advance!-
Answer:
6. As the lunar cycle progresses from the full moon to new moon the light will appear to decrease
7. The “growing light” that appears during the first half of the lunar cycle is referred to as waxing.
8. The third quarter / 7th phase occurs at 21 days into the cycle and shows the left half of the moon illuminated.
9. In a crescent stage less than half of the Moon appears illuminated and during a gibbous stage more than half appears illuminated.
Explanation:
The "growing light" that appears during the first half of the lunar cycle is referred to as the "waxing phase" ,the first quarter phase occurs 21 days into the cycle and in the crescent stage, less than half of the moon appears illuminated.
What is the significance of the lunar cycle?It has much significance and is related to the moon, which is a natural navigation aid for mariners, providing light at night and it has an impact on the life cycles of animals and plants, including breeding and migration, and the gravitational pull of the moon and the sun causes the tides to rise and fall.
Hence, the "growing light" that appears during the first half of the lunar cycle is referred to as the "waxing phase" ,the first quarter phase occurs 21 days into the cycle and in the crescent stage, less than half of the moon appears illuminated.
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Select all of the choices that are true regarding tides...
Spring tides occur when the gravitational pull of the sun and moon are in line with each other, while neap tides occur when the gravitational pull of the sun and moon are perpendicular to each other
Tides only occur in the ocean
Tidal forces are primarily caused by the moon's gravitational pull
Larger bodies of water have more noticeable tides
Tidal forces are caused by a combination of the gravitational pull of the Moon and the Sun
Spring tides occur when the gravitational pull of the sun and moon are perpendicular to each other, while neap tides occur when the gravitational pull of the sun and moon are in line with each other
Answer:
a,b,c,e
Explanation:
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what are the steps to make beryllium?
Answer:
Beryllium is processed from the ore in four major steps: (1) the beryl ore is converted into a standard grade of beryllium hydroxide, (2) the hydroxide is purified, (3) purified beryllium hydroxide is reacted with ammonium bifluoride for conversion into ammonium beryllium fluoride, and (4) then reduced to beryllium
Answer:
Beryllium is processed from the ore in four major steps: (1) the beryl ore is converted into a standard grade of beryllium hydroxide, (2) the hydroxide is purified, (3) purified beryllium hydroxide is reacted with ammonium bifluoride for conversion into ammonium beryllium fluoride, and (4) then reduced to beryllium ...
Explanation:
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