Multiple Choice
Which statement is correct regarding DNA polymerases on the bacterial chromosome?
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14. DNA Synthesis
DNA Polymerases
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What is the primary function of DNA polymerase during DNA replication?
A
To synthesize new DNA strands by adding nucleotides to a pre-existing chain
B
To join Okazaki fragments on the lagging strand
C
To remove RNA primers from the newly synthesized DNA strand
D
To unwind the DNA double helix
Verified step by step guidance1
Understand the role of DNA polymerase: DNA polymerase is an enzyme that plays a crucial role in DNA replication. Its primary function is to synthesize new DNA strands by adding nucleotides to a pre-existing chain.
Recognize the process of DNA replication: During DNA replication, the DNA double helix is unwound, and each strand serves as a template for the formation of a new complementary strand.
Identify the function of DNA polymerase in this process: DNA polymerase adds nucleotides to the 3' end of the newly forming DNA strand, ensuring that the new strand is complementary to the template strand.
Differentiate between the leading and lagging strands: On the leading strand, DNA polymerase synthesizes continuously, while on the lagging strand, it synthesizes in short segments called Okazaki fragments.
Clarify the role of other enzymes: While DNA polymerase synthesizes DNA, other enzymes like ligase join Okazaki fragments, and helicase unwinds the DNA double helix. RNA primers are removed by different enzymes, not DNA polymerase.
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