Asked by Marzena Mielcarek on May 01, 2024
Verified
Which of the following describes a function of the DNA helicase?
A) connects the Okazaki fragments and seals any breaks in the sugar-phosphate backbone
B) adds nucleotides to the growing 3' end of the new DNA strand
C) creates the lagging strand in semiconservative replication
D) unwinds and "unzips" the double-stranded DNA by breaking the weak hydrogen bonds between the paired bases
E) re-creates the broken hydrogen bonds so that DNA becomes double-stranded again
DNA Helicase
An enzyme that unwinds the DNA helix, separating the two strands and allowing them to be copied during DNA replication.
Semiconservative Replication
The method by which DNA replicates, where each original strand serves as a template for a new strand, resulting in two DNA molecules, each with one old and one new strand.
Okazaki Fragments
Short fragments of DNA that are synthesized on the lagging strand during DNA replication.
- Gain insight into the dynamics of DNA replication, specifically the involvement of certain enzymes.
Verified Answer
Learning Objectives
- Gain insight into the dynamics of DNA replication, specifically the involvement of certain enzymes.
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