DNA Review

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

Which of the following must happen first in order for DNA replication to occur?

• DNA polymerase binds to the leading strand
• DNA is unwound
• Hydrogen bonds form between bases
• chromosomes condense

Which of the following is required for DNA replication to occur?

• DNA helicase
• DNA ligase
• DNA polymerase
• all of these

Match the Following: Base Pairing Rule

• G

• T

• C

• A

• A

• G

• T

• C

Match the following: Base Pairing Rule

• Adenine

• Guanine

• Cytosine

• Thymine

• Guanine

• Adenine

• Thymine

• Cytosine

DNA replication is described as ________ when new DNA is composed of one strand from the parent DNA and one strand that is newly synthesized.

Match the following: Enzymes to Functions

• Enzyme that joins or glues fragments of new DNA together

• Ligase

• Enzyme that creates a starting point for DNA polymerase

• Helicase

• Builder enzyme that synthesizes new strands of DNA by adding DNA nucleotides

• DNA Polymerase

• enzyme unzips DNA like a zipper, creating two single strands of DNA

• Primase

What is the complementary base pairing for the following sequence?

AATTGGCC

What is the complementary base pairing for the following sequence?

ATATCGCG