Multiple Choice
How does bacterial DNA replication differ from eukaryotic DNA replication?
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14. DNA Synthesis
Introduction to DNA Replication
Multiple Choice
How is each new molecule of DNA related to the original molecule after replication?
A
Each new DNA molecule consists of one original strand and one new strand.
B
Each new DNA molecule consists of two original strands.
C
Each new DNA molecule is identical to the original molecule.
D
Each new DNA molecule consists of two new strands.
Verified step by step guidance1
Understand the process of DNA replication: DNA replication is a semi-conservative process, meaning that each new DNA molecule consists of one original (parental) strand and one newly synthesized strand.
Recognize the role of enzymes: During replication, enzymes like DNA helicase unwind the double helix, and DNA polymerase synthesizes the new strand by adding nucleotides complementary to the original strand.
Identify the correct pairing: The new strand is formed by complementary base pairing, where adenine pairs with thymine and cytosine pairs with guanine.
Consider the outcome of replication: After replication, each of the two resulting DNA molecules contains one strand from the original DNA and one newly synthesized strand.
Conclude with the correct relationship: Therefore, each new DNA molecule is related to the original molecule by having one original strand and one new strand, confirming the semi-conservative nature of DNA replication.
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