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inessss [21]
3 years ago
10

Which of the following statements about active transport is true?

Biology
1 answer:
Roman55 [17]3 years ago
6 0

Answer:

It results in a higher concentration of molecules on one side of the membrane.

Explanation:

Active transport is the transport of molecules up the concentration gradient. This means that molecules are going from low density to high density. This is the opposite of natural diffusion. So, it requires ATP to move the molecules this way. Diffusion normally occurs to maintain homeostasis and an equal amount of concentration on both sides of a membrane. But, with active transport, since molecules are moving up the gradient, the opposite happens and the concentrations are unequal.

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When the offspring's phenotype is a "combination" (mixture) of parents' phenotypes
mel-nik [20]

Answer: C) Codominance

Explanation:

When the offsprings phenotype is a combination of both parents

3 0
3 years ago
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Which of the following contribute(s) to the variation in offspring produced by sexual reproduction?
fredd [130]

Answer:

The correct answer is E. All of the above

Explanation:

Variation in offspring can be contributed by many different events that change the DNA sequence in gametic cells. These events are crossing over, mutation, independent assortment, and random fertilization.

During the gamete formation, the different genes are assorted independently from the other gametes which results in forming various possible combinations of genes in a gamete increasing the genetic variation.

Crossing over occurs during meiosis between the homologous chromosome that results in exchange of genetic material that brings genetic variation in gametes. During random fertilization, the two gametes fuse and genetic material of two different individual comes to make an offspring which forms a genetical different offspring.

Mutation in the gametic cell is transferred to the offspring during fertilization. Therefore all contributes to variation in offspring produced by sexual reproduction.

8 0
3 years ago
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Answer:

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8 0
3 years ago
I have no idea, help?<br>75 points.
wolverine [178]

1) Glucose

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pretty sure this is right anyway, hope i helped some

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