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Multiple Choice
What is the primary function of DNA polymerase during DNA replication?
A
It repairs mismatched nucleotides in the DNA strand.
B
It synthesizes new DNA strands by adding nucleotides.
C
It unwinds the DNA double helix.
D
It joins Okazaki fragments on the lagging strand.
Verified step by step guidance
1
Understand the role of DNA polymerase in the context of DNA replication. DNA replication is the process by which a cell duplicates its DNA before cell division.
Recognize that DNA polymerase is an enzyme that plays a crucial role in synthesizing new DNA strands. It adds nucleotides to the growing DNA strand complementary to the template strand.
Identify the specific function of DNA polymerase: it catalyzes the formation of phosphodiester bonds between nucleotides, effectively elongating the DNA strand.
Differentiate between the functions of DNA polymerase and other enzymes involved in DNA replication, such as helicase (which unwinds the DNA double helix) and ligase (which joins Okazaki fragments).
Conclude that the primary function of DNA polymerase during DNA replication is to synthesize new DNA strands by adding nucleotides, ensuring the accurate duplication of the genetic material.