In DNA Replication

Question

In DNA replication,
A) 23 copies are made of each chromosome.
B) one new copy is made of each chromosome, and the original chromosome remains intact.
C) two new copies are made of each chromosome, and the original chromosome is destroyed.
D) two copies are made of each chromosome, and each copy contains one of the DNA strands from the original chromosome.
E) the chromosome is copied to RNA, which is then copied to DNA for a new chromosome.

Accepted Answer

During DNA replication, each chromosome is copied to form two identical copies called sister chromatids. These chromatids contain one original DNA strand and one newly synthesized DNA strand. The original chromosome is not destroyed in the process. Therefore, option D is the correct answer. Options A, B, C, and E are incorrect as they do not accurately describe the process of DNA replication.