Sister Chromatids

Question

Sister chromatids
A) are found in cells called primary gametes.
B) contain twice the normal amount of DNA.
C) occur during ovum formation.
D) are found in cells called primary gametes and contain twice the normal amount of DNA.
E) are found in cells called primary gametes, contain twice the normal amount of DNA, and occur during ovum formation.

Accepted Answer

Sister chromatids are formed during mitosis and meiosis when DNA replication occurs. They are found in cells called primary gametes (cells that will undergo meiosis to form gametes), and they contain twice the normal amount of DNA because they are two identical copies of a single chromosome. However, they do not occur specifically during ovum formation, as they are present during both male and female gamete production.