Question

MEDALSS!!

Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase? (1 point)
A-The DNA must be replicated.
B-The chromosomes must be joined.
C-The cytoplasm must be separated.
D-The cell membrane must be expanded,

Answer 1

During the S phase in the cell cycle, the chromosomes are replicated so that there are two copies. These copies are necessary so that each daughter cell created during the M phase will have an identical copy of the DNA.

Therefore, the answer is A: The DNA must be replicated.


The chromosomes joining, cell membrane expanding, and cytoplasm separating all happen during the M phase (mitosis).