7.2 - DNA replication

​In _________, DNA replication there are multiple origins of replication​

• prokaryotic

• eukaryotic

• both prokaryotic and eukaryotic

• neither prokaryotic and eukaryotic

​In _________ DNA replication there is only one origin of replication.

• prokaryotic

• eukaryotic

• both prokaryotic and eukaryotic

• neither prokaryotic and eukaryotic

Which protein breaks H-bonds between the parental strands complementary bases?

• ligase

• DNA polymerase

• helicase

• RNA primase

Which protein adds DNA nucleotides and replaces RNA primer with DNA?

• ligase

• DNA polymerase

• helicase

• RNA primase

Which protein binds Okazaki fragments together?

• ligase

• DNA polymerase

• helicase

• RNA primase

Which protein adds an RNA primer to the template DNA strand?

• ligase

• DNA polymerase

• helicase

• RNA primase

T/F: Single stranded binding proteins hold the parental strands of DNA apart for replication to occur.

• true

• false

Why is DNA replication considered semi-conservative?

• parental strands of DNA separate, serve as templates, and produce one DNA molecule that is fully new, and one DNA molecule that is fully parental 

• parental strands of DNA separate, serve as templates, and produce DNA molecules that have one strand of parental DNA and one strand of new DNA.

• parental strands of DNA separate, serve as templates, and produce two DNA molecules that are fully new, the parental DNA is then destroyed.

​The ______ strand runs 5’ to 3’ so new bases get added as the helix opens up,​

• leading

• lagging

​The ______ strand runs 3’ to 5’ so only small sections can be replicated at a time.

• leading

• lagging