19. When a DNA molecule replicates, the resulting
DNA molecules are correctly described by which of the following?
a. Entirely new strands of DNA are made.
b. Each strand of the DNA molecule contains some old DNA and some new DNA.
c. Each new DNA molecule contains one old strand and one new strand.
d. One DNA molecule contains two old strands; the other has two new strands.
Replication is semiconservative, and the newly formed DNA is
sometimes referred to as hybrid DNA