DNA Replication Review Quiz!

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

What is step 1 of replication?

• Nucleotides are added to the exposed bases on the DNA molecule

• The DNA molecule is unwound

• Nucleotides are broken off of the DNA molecule

• 1 strand of the original DNA molecule is conserved in the new molecules

What is step 2 of DNA replication?

• The DNA molecule is unzipped (hydrogen bonds are broken)

• Nucleotides are added to two template strands of DNA according to base-pairing rules

• Complementary strands are added to the template strands by DNA helicase

What is step 3 of DNA replication

• DNA is wound to form a double helix once more

• Free-floating nucleotides are added to the exposed bases on each template strand

• DNA is unzipped

What is step 4 of DNA replication?

• DNA is unzipped

• Nucleotides are added to the exposed bases

• DNA is unwound

• 2 identical strands of DNA are formed

What is the enzyme responsible for the unwinding and unzipping of the DNA molecule during replication?

• DNA polymerase

• DNA ligase

• DNA primase

• DNA helicase

Which enzyme is responsible for adding nucleotides to the exposed bases during DNA replication?

• DNA ligase

• DNA primase

• DNA polymerase

• DNA helicase

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

The new DNA strand formed after DNA replication is an exact copy of its parent strand

• True

• False

Sometimes, DNA is called "semi-conservative." Why might this be?

• The old strand is "conserved" and used to make the new strands

• Uracil is "conserved" in that it is only used to make the new strands
• ATP is "conserved" via the usage of facilitated diffusion
• Ligase is "conserved" in that it is denatured by the process

Tags

NGSS.HS-LS1-1