Question

1. the model shows what happens to genetic material before and after interphase.

write your answer on the lines.
compare the differences between the chromosome structures before and after interphase. include in your comparison the process that causes the difference.

Explanation:

Before interphase, each chromosome has 1 chromatid. After interphase, each chromosome has 2 chromatids. The process that causes this difference is DNA replication during the S - phase of interphase. DNA replication duplicates the genetic material, resulting in two sister chromatids attached at the centromere for each chromosome.

Answer:

Before interphase, each chromosome has 1 chromatid. After interphase, each chromosome has 2 chromatids. This is because of DNA replication (during the S - phase of interphase), which duplicates the genetic material, creating two sister chromatids per chromosome.