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ch 14

TermDefinition
semiconservative replication DNA is synthesized through a process known as
helix The shape of DNA is best described as a
single-strand DNA binding proteins Which of the following help(s) to hold the DNA strands apart while they are being replicated?
each new DNA double helix consists of one old strand and one new strand After semiconservative replication
telomeres The ends of linear chromosomes are protected from nucleases by repeats of short specific DNA sequences called
What is a major difference between eukaryotic DNA replication and prokaryotic DNA replication? Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have multiple origins of replication.
Replication of a DNA molecule begins at special sites called origins of replication true
If 20% of the nucleotides from a DNA molecule contain the base T, what percent will contain the base G? 30%
If 18% of the nucleotides from a DNA molecule contain the base T, what percent will contain the base A? 18%
each new DNA double helix consists of one old strand and one new strand After replication
complementary Because the two strands of a DNA molecule are_________ to each other, either one can be used as a template to reconstruct the other
Single-strand DNA-binding proteins (SSBPs) break hydrogen bonds between the two DNA strands to separate them false
What is the role of DNA ligase in the elongation of the lagging strand during DNA replication? It joins Okazaki fragments together.
Semiconservative replication involves a template. What is the template? one strand of the DNA molecule
The leading and the lagging strands differ in that ________. the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction
helicase unwinds the DNA double helix during replication
DNA pol I removes the primers then fills the gap during prokaryotic DNA replication
telomerase adds DNA repeats to the end of eukaryotic chromosomes to prevent their shortening with each round of replication
DNA gyrase relieves the strain as the double helix is unwound
polymerase adds new nucleotides to the end of a growing stand of DNA or RNA
ligase joins together Okazaki fragments on the lagging strand
DNA primase creates a short RNA primer complementary to the DNA template
DNA pol III synthesizes the majority of bacterial DNA
Created by: user-2002492
 

 



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