Question

After DNA replication during S phase of Interphase, each chromosome has a copy and the cell is now 4n. We call these identical pairs ___________ and they are held together by a ___________.

A) homologous pairs; centrosome.

B) homologous pairs; histone.

C) sister chromatids; histone.

D) sister chromatids; centromere.

Answer 1

DNA replicates before cell division, duplicating chromosomes. This occurs during S stage of interphase! Now each chromosome has two identical double helical models. Each double helix is a chromatid, two identical chromatids are sister chromatids.

Answer 2

Answer:

D) Sister Chromatids; Centromere

Explanation:

you're welcome