Question

Question #d12f8

Answer 1

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

• `10` centromeres at prophase
• `20` chormatids at metaphase
• `20` chromosomes at anaphase
• `20` chromosomes at telophase

Explanation:

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

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

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