Question

DNA replication results in two DNA molecules, a)each with one new strand and one original strand. b) one with two new strands and the other with two original strands. c) each with two original strands. d) each with two new strands.

Answer 1

DNA replication is a semiconservative process that results in two DNA molecules, each containing one original strand and one new strand.

Step-by-step explanation:

DNA replication results in two DNA molecules: each with one new strand and one original strand. This occurs because during DNA replication, each strand of the original double helix serves as a template for a new complementary strand to be synthesized. Thus, each new DNA molecule conserves half of the original molecule- one original (template) strand, and includes one newly formed strand. This mode of replication is known as semiconservative replication. It ensures that each daughter cell receives DNA that is identical to the parent cell's DNA, barring any replication errors, which are typically corrected by proofreading enzymes.

Answer 2

a)each with one new strand and one original strand