Question Detail

BIO 101 Last Min Prep Objective Question

Question

The amount of DNA in a mammalian cell in early prophase 1 is X. What is the amount of DNA in the same cell in anaphase 1 of meiosis? A. X/4 B. 2X C. X/2 D. X
Options
A X/4
B 2X
C X/2
D X
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

At early prophase I, DNA has already been replicated, so the cell has 4n amount of DNA (X). During anaphase I, homologous chromosomes separate, but sister chromatids remain together. The cell still contains the same total amount of DNA (X) because no further replication or division has occurred, although it's distributed differently.

Hint

DNA content doesn't change until after cytokinesis I.

Question Info