GCD CH.6 EXAM QUESTIONS WITH 100% CORRECT DETAILED ANSWERS
0 view 0 purchase
Course
GCD CH.6
Institution
GCD CH.6
GCD CH.6 EXAM QUESTIONS WITH 100% CORRECT DETAILED ANSWERS
The proofreading activity of DNA polymerase occurs in which direction? A) 5' to 3'
B) 3' to 5' - Answer-B) 3' to 5'
True or false - During DNA replication, DNA polymerase initiates a completely new DNA strand from scratch - Answer-Fal...
GCD CH.6 EXAM QUESTIONS WITH
100% CORRECT DETAILED
ANSWERS
The proofreading activity of DNA polymerase occurs in which direction?
A) 5' to 3'
B) 3' to 5' - Answer-B) 3' to 5'
True or false - During DNA replication, DNA polymerase initiates a completely new DNA
strand from scratch - Answer-False
Which of the following describes a primer used in DNA replication?
A) A short segment (about 10 nucleotides) of DNA
B) A short segment (about 10 nucleotides) of RNA
C) A short segment (about 10 amino acids) of a polypeptide - Answer-B) A short
segment (about 10 nucleotides) of RNA
True or false - DNA replication requires two primers: one primer for the lagging strand
and one primer for the leading strand. - Answer-False
What powers the action of helicase at the replication fork, where it opens up the double
helix?
A) DNA nucleotide hydrolysis
B) ATP hydrolysis
C) GTP hydrolysis - Answer-B) ATP hydrolysis
What is the function of single-strand binding proteins in DNA replication?
A) They unwind a DNA double helix to form two separate, single strands.
B) They bind to single-stranded DNA and assist in the re-formation of double-stranded
DNA.
C) They bind to single-stranded DNA and prevent the single-strands from re-forming
base pairs. - Answer-C) They bind to single-stranded DNA and prevent the single-
strands from re-forming base pairs
What is the function of the sliding clamp in DNA replication?
A) It keeps DNA polymerase firmly attached to the template while it synthesizes a new
strand of DNA.
B) It unwinds the double helix at the replication fork to allow DNA polymerase to
progress along the DNA.
C) It hydrolyzes ATP to power the movement of DNA polymerase along the DNA
template. - Answer-A) It keeps the DNA polymerase firmly attached to the template
while it synthesizes a new strand of DNA
The enzyme that replicates the ends of chromosomes is called:
, A) DNAse.
B) telomerase.
C) capping polymerase.
D) DNA ligase. - Answer-B) telomerase
A) after many rounds of DNA replication, the original DNA double helix is still intact
B) each daughter DNA molecule consists of two new strands copied from the parent
DNA molecule
C) each daughter DNA molecule consists of one strand from the parent DNA molecule
and one new strand
D) new DNA strands must be copied from a DNA template - Answer-C) each daughter
DNA molecule consists of one strand from the parent DNA molecule and one new
strand
The classic experiments conducted by Meselson and Stahl demonstrated that DNA
replication is accomplished by employing a mechanism.
A) continuous
B) semiconservative
C) dispersive
D) conservative - Answer-B) semiconservative
If the genome of the bacterium E. coli requires about 20 minutes to replicate itself, how
can the genome of the fruit fly Drosophila be replicated in only 3 minutes?
A) The Drosophila genome is smaller than the E. coli genome.
B) Eucaryotic DNA polymerase synthesizes DNA at a much faster rate than procaryotic
DNA polymerase.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller victoryguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
