In DNA replication,
a. two copies are made of each chromosome, and each copy
contains one of the DNA strands from the original chromosome.
b. the chromosome is copied to RNA, which is then copied to DNA
for a new chromosome.
c. two new copies are made of each chromosome, and the original
chromosome is destroyed.
d. one new copy is made of each chromosome, and the original
chromosome remains intact.
e. 23 copies are made of each chromosome.