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Multiple Choice
Which statement best describes the product of DNA replication?
A
Two DNA molecules, each with two original strands.
B
One DNA molecule with two new strands.
C
Two DNA molecules, each composed entirely of new strands.
D
Two identical DNA molecules, each with one original and one new strand.
Verified step by step guidance
1
Understand the process of DNA replication: DNA replication is a semi-conservative process, meaning that each of the two new DNA molecules will have one original (parental) strand and one newly synthesized strand.
Recognize the role of the enzyme DNA polymerase: During replication, DNA polymerase adds new nucleotides complementary to the template strand, forming a new strand alongside the original one.
Identify the structure of the resulting DNA molecules: After replication, each DNA molecule consists of one original strand and one new strand, maintaining the genetic information.
Clarify the concept of semi-conservative replication: This term describes how each daughter DNA molecule conserves one of the original strands, ensuring genetic continuity.
Conclude with the correct description: The product of DNA replication is two identical DNA molecules, each with one original and one new strand, which aligns with the semi-conservative model.