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Nastasia [14]
3 years ago
9

Which statement best summarizes the current state of land ice in

Biology
1 answer:
Inga [223]3 years ago
3 0
I believe the answer is C
Hope this helps you have a good night
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Cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be present in a g1 cell? if a cell at meta
kumpel [21]

Answer:

The correct answer would be 10.

The cell cycle can be divided into four phases namely gap 1 (G₁) phase , synthesis (S) phase, gap 2 (G₂) phase, and  mitosis (M) phase.

DNA (deoxyribonuceic acid) content is only replicated and doubled in the S phase. However, the chromosome number remains the same. It can be explained as the number of chromosomes remains the same (2n) but number of chromatids doubles (4n) after S phase.

The number of chromatids restores to 2n in daughter cells after completion of mitosis.

Hence, if number of chromatids in metaphase was 20 i.e. 4n then the number of chromosomes (2n) would be 10.

Hence, 10 chromosomes or 5 pairs of chromosome would be present in the cell during its G₁ phase.

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3 years ago
Darwin’s theory of evolution offers a scientific explanation for which of the following ?
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I thinking A. or B. but im sure it one of them. that's a 50% chance.
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Describe the view if you were to stand in the penumbra of a lunar eclipse.
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This is parasitism because one organism (mosquito) is benefitting (by acquiring nutrition) and the other organism (human) is harmed (by the red itchy bump).
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A student drew the model below to represent a part of a watershed and some human activities that afect the watershed how do the
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Answer:The answer is B bro

Explanation:

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