DNA Replication

In DNA, what nucleotide binds with Thymine?

• Guanine

• Cytosine

• Adenosine

• Uracil

In DNA, what nucleotide binds with Cytosine?

• Uracil

• Guanine

• Adenosine

• Thymine

What enzyme has the job of breaking the double helix structure by breaking hydrogen bonds between nucleotides?

• DNA Polymerase

• Topiosomerase

• Ligase

• Helicase

Which enzyme has the job of keeping the DNA strand from coiling during replication?

• Topiosomerase

• Primase

• DNA polymerase

• Ligase

Which enzyme has the job of building nucleotides to match the original strand?

• DNA polymerase

• Ligase

• Helicase

• Primase

Which enzyme directs DNA polymerase to start replication, and guides its location?

• Helicase

• DNA polymerase

• Ligase

• Primase

What enzyme insures that both original strands are bonded to their new strand so that they can recoil and form a new set of DNA?

• Primase

• Ligase

• Helicase

• Topiosomerase

Why is DNA replication called the "semi-conservative method?"

• The double helix conserves half of the nucleotide sequence, while destroying the other half.

• It is semi-sucessful.

• One double helix replicates to form a second double helix, however, when this process is over each double helix contains one strand from the original, and one strand newly built.

True or False? Some mutations can be beneficial?

• True

• False

If a strand reads:
3' A A A T T T C 5'
The matching strand would read...

• 5' T T T A A A G 3'
• 3' T T T A A A G 5'
• 5' A A A T T T C 3'
• 3' U U U A A A G 5'