Question #d12f8

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Question #d12f8

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Answer 1 · 2017-11-04T16:51:25

If $2 n = 10$ $2n=10$ , then there are $10$ $10$ two chromatid chromosomes.

$10$ $10$ centromeres at prophase
$20$ $20$ chormatids at metaphase
$20$ $20$ chromosomes at anaphase
$20$ $20$ chromosomes at telophase

Explanation:

Each chromosome has one centromere, therefore $10$ $10$ chromosomes $= 10$ $= 10$ centromeres. Since there are $10$ $10$ two chromatid chromosomes, the total of chromatids is $20$ $20$ .

During anaphase, they split to one chromatid chromosomes so each two chromatid chromosome will create two one chromatid chromosomes $2 \times 10 = 20$ $2xx10=20$ .

And the number of chromosomes doesn't change between anaphase and telophase, so there are still $20$ $20$ chromosomes.

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