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Mandarinka [93]
4 years ago
13

Which of the statements about nucleosomes are correct?

Biology
1 answer:
Pepsi [2]4 years ago
5 0

Answer:

c. DNA binding to histones enables overall positive supercoiling without enzymes that underwind the DNA helix.

Explanation:

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3 years ago
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Explain character displacement, and provide an example.
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A line of indirect evidence of competition comes from the comparison between closely related species, whose population can be allopatric (geographically separated) or sympatric (geographically superimposed). In some cases, the allopatric populations of these species are morphologically similar and use similar resources. On the other hand, sympatric population, which are supposed to compete for resources, have body structures and use different resources. The displacement of characters is the tendency to have more divergent characteristics in sympatric populations of two species than in allopatric populations of the same two species.

An example of character displacement is the variation in size between populations of galapagos finches. Some of its populations are allopatric ( they live separately) and others are sympatric ( they live together). Peak size distributions they vary according to whether they are sympatric or allopatric.  They look more alike when they are allopathic than when they are sympatric. That is, the peak size character moves when species enter competition.

6 0
4 years ago
2) A segment of DNA that is artificially created from two or more organisms, through use of DNA enzymes in a laboratory is calle
MAXImum [283]
How about "recombinant DNA?" Which is the result of DNA cloning as ttom suggests.

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3 years ago
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Which organelle contains digestive enzymes th t break down waste material and debris in the cell
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The answer is lysosomes 
Hope this helps :)
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