Biology DNA Replication

The 3 processes of DNA replication are:

• Separating DNA

• Building Complementary Strand

• Quality Control and DNA repair

• Bonding DNA

(Separating DNA) What unzips DNA?

• Helicase (enzyme)

• DNA polymerase
• Ligase
• Topoisomerase

(Separating DNA) DNA separates by breaking what between complementary pairs?

• peptide bonds
• covalent bonds
• hydrogen bonds
• ionic bonds

(Separating DNA) When DNA separates it creates a junction called a?

• replication bubble
• replication fork
• DNA splice site
• genetic junction

(Separating DNA) What regulates the unwinding of the DNA during DNA replication?

• Topoisomerase

• Ligase
• DNA polymerase
• Primase

(Separating DNA) DNA polymerase creates a new DNA strand by

• binding to ribosomes during protein synthesis
• synthesizing RNA instead of DNA
• adding nucleotides complementary to the template strand
• removing nucleotides from the template strand

(Building Complementary Strands) Can DNA Polymerase initiate a strand? (_true or false)

(a)  

(Building Complementary Strands) Primase must add a short segment of nucleotides called a?

• primer
• template
• enzyme
• nucleotide

Follows the 3 x 5 template strand and moves toward replication fork and is replicated continuously?

• Leading strand
• Lagging strand
• Okazaki fragment
• Template strand

Moves from replication fork to 5' end of template strand so replication is discontinuous.

• Lagging Strand

• DNA polymerase only works on the leading strand.
• DNA polymerase synthesizes continuously along the template strand.
• DNA polymerase moves from 3' end to replication fork.