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Dzano Dzano
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2 years ago Edited: 2 years ago, Dzano
If 2n = 28, how many DNA molecules does a cell have in the prophase of mitosis, the metaphase of meiosis one, the prophase of meiosis two and the metaphase of meiosis two?
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wrote...
Educator
2 years ago
2n = 28

This equation tells us that the organism has 14 pairs of chromosomes, thus making 28 chromosomes in total.

Before mitosis begins, however, the 28 chromosomes need to be replicated.

Hence, at prophase, we expect to finding 28 * 2 = 56 chromosomes in total.

Does that help?
Dzano Author
wrote...
2 years ago
In the metaphase of meiosis one: 56
 prophase of meiosis two: 28
metaphases of meiosis two: 28
 Is this correct?


wrote...
Educator
2 years ago
Yes 👍
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