Question
Biology Question on the molecular basis of inheritance
Each chromosome at the anaphase stage of a bone marrow cell in our body has
A
two chromatids
B
several chromatids
C
no chromatids
D
only one chromatid.
Answer
only one chromatid.
Explanation
Solution
A bone marrow cell is a somatic cell and therefore mitosis takes place in it. During mitosis anaphase chromosomes split at centromere. Sister chromatids separate from each other, so that the two sister chromatids are separate structures and can now be called as chromosomes.