DNA Replication

A biological process of producing two identical replicas of DNA from one original DNA molecule is

• Transcription

• Translation

• DNA Replication

• Protein Synthesis

Which sequence of DNA bases would pair with this partial DNA strand?

CAT TCA CTG

• CAT TCA CTG

• GAT ACA GTG

• GTA AGT GAC

• GAC AGT GTA

Which Enzyme unwinds the DNA double helix to allow other enzymes to attach and begin their job?

• Topoisomerase

• Helicase

• DNA Polymerase

• DNA Ligase

________________________ unzips the 2 strands of the double helix by breaking the weak hydrogen bonds that hold the nitrogen base pairs together

• Topoisomerase

• Helicase

• Ligase

• Primase

Which enzyme can we relate to "glue" because it facilitates the joining of DNA strands together?

• Helicase

• DNA Polymerase

• DNA Primase

• DNA Ligase

DNA ______________________ joins new nucleotides to the original strand to make a new polymer

• Polymerase

• Topoisomerase

• Ligase

• Primase

Which enzyme catalyzes the synthesis of a short RNA segment to complement the DNA template?

• DNA Polymerase

• DNA Helicase

• DNA Primase

• DNA Ligase

DNA replication is called semi-conservative because it results in two DNA molecules,

• each one with one new strand and one original strand

• each one with two original strands

• each one with two new strands

• one with two new strands and one with two original strands

In what phase of cell division does DNA Replication take place?

• G1

• S

• G2

• M

Place the following events in DNA Replication in order

1 - Hydrogen bonds between nucleotides form

2 - Hydrogen bonds between nucleotides break

3 - Strands of DNA seperate

4 - Free nucleotides are attracted to exposed bases on the loose strands of DNA

• 2, 3, 4, 1

• 1, 2, 3, 4

• 1, 3, 4, 2

• 4, 3, 2, 1