8.2 SG Flashcards
(14 cards)
What is a leading strand in DNA replication?
The leading strand is the DNA strand that is synthesized continuously in the same direction as the replication fork.
What is a lagging strand in DNA replication?
The lagging strand is the DNA strand that is synthesized discontinuously in the opposite direction of the replication fork.
The leading strand is synthesized in short segments known as Okazaki fragments.
False
What is the enzyme responsible for synthesizing new DNA strands.
DNA polymerase
What role does helicase play in DNA replication?
Helicase unwinds and separates the double-stranded DNA into single strands at the replication fork.
What are Okazaki fragments?
Okazaki fragments are short segments of DNA synthesized on the lagging strand during DNA replication.
Which enzyme is responsible for joining Okazaki fragments together?
DNA ligase
What is the function of primase in DNA replication?
Primase synthesizes a short RNA primer to provide a starting point for DNA synthesis.
The replication fork is the area where DNA is being unwound and replicated.
True
What direction does DNA polymerase synthesize new DNA strands?
DNA polymerase synthesizes new DNA strands in the 5’ to 3’ direction.
What is the area called where the two strands separate?
Replication bubble
Which strand is synthesized continuously?
The leading strand
Which strand requires multiple RNA primers for synthesis?
The lagging strand
What removes RNA primers and fills in the gaps with DNA.
DNA polymerase I
