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Neporo4naja [7]
3 years ago
7

Evolution is the process by which populations accumulate inherited changes over time. Which of the following mechanisms drives e

volution? natural selection nitrogen fixation fossilization plate tectonics
Biology
2 answers:
max2010maxim [7]3 years ago
4 0
Natural Selection is the answer
Pachacha [2.7K]3 years ago
4 0
The correct answer is natural selection

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Eukaryotic chromosomes contain two general domains that relate to the degree of chromatin condensation. These two regions are _
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Answer:

This question lacks options, options are: A) Heterochromatin and euchromatin

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C) Separated by large sketches of repetitive DNA

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The correct answer is A.

Explanation:

The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.

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