Scelta multipla
In an overview of DNA replication, which enzyme is primarily responsible for unwinding the DNA double helix at the replication fork?
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8. DNA Replication
Overview of DNA Replication
Scelta multipla
In the overview of DNA replication, which process produces two DNA molecules, each containing one original (parental) strand and one newly synthesized strand?
A
Translation
B
Transcription
C
Conservative DNA replication (both parental strands stay together in one daughter molecule)
D
Semiconservative DNA replication
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Understand the concept of DNA replication and the different models proposed: conservative, semiconservative, and dispersive replication.
Recall that in conservative replication, the original double-stranded DNA molecule remains intact, and an entirely new double-stranded DNA molecule is synthesized.
Recognize that in semiconservative replication, each of the two resulting DNA molecules contains one original (parental) strand and one newly synthesized strand.
Note that transcription and translation are processes related to gene expression, not DNA replication; transcription produces RNA from DNA, and translation produces proteins from RNA.
Conclude that the process producing two DNA molecules, each with one parental and one new strand, is semiconservative DNA replication.
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