Consider the following diagram which depicts a particular an

Consider the following diagram which depicts a particular anaphase of cell division in an animal. Assume that in this animal there is NO crossing-over, either in mitosis or meiosis! Can you tell for sure whether this is anaphase of mitosis, or anaphase I of meiosis, or anaphase II of meiosis? If so, what is the diploid number of this cell?

Solution

This picture shows anaphase of mitosis.

The centromere of every chromosome is seen dividing. Sister chromatids are separated and are moving towards the poles.

The diploid number of the cell =2n=2×4=8 chromosomes in the anaphase stage as it is doubled

Where n= number of chromosome

But in the prophase and metaphase number of chromosomes in 4.