Mastering Biology Ch 16
The enzyme that can replicate DNA is called _____.
DNA polymerase
Why is the new DNA strand complementary to the 3' to 5' strands assembled in short segments?
DNA polymerase can assemble DNA only in the 5' to 3' direction
After replication is complete, the new DNAs, called _____, are identical to each other.
Daughter DNA
Which of these is responsible for catalyzing the formation of an RNA primer?
Primase catalyzes the formation of an RNA primer.
The synthesis of a new strand begins with the synthesis of a(n) _____.
RNA primer complementary to a preexisting DNA strand
Okazaki Fragments
are the short sections of DNA that are synthesized on the lagging strand of the replicating DNA
After DNA replication is completed, _____.
each new DNA double helix consists of one old DNA strand and one new DNA strand
The first step in the replication of DNA is catalyzed by _____.
helicase
The new DNA strand that grows continuously in the 5' to 3' direction is called the _____.
leading strand
Short segments of newly synthesized DNA are joined into a continuous strand by _____.
ligase
During DNA replication, an open section of DNA, in which a DNA polymerase can replicate DNA, is called the _____.
replication fork
The action of helicase creates _____
replication forks and replication bubbles
An old DNA strand is used as a _____ for the assembly of a new DNA strand.
template
In a DNA double helix an adenine of one strand always pairs with a(n) _____ of the complementary strand, and a guanine of one strand always pairs with a(n) _____ of the complementary strand.
thymine ... cytosine