Molecular Genetics AP

What enzyme unwinds the DNA?

• Helicase
• DNA polymerase
• Ligase
• Primase

What enzyme adds nucleotides to build the new strand of DNA?

• Helicase
• DNA polymerase
• Ligase
• Primase

What enzyme adds the RNA primer to start the strand of DNA?

• Topoisomerase
• DNA polymerase
• Ligase
• Primase

What enzyme keeps the DNA from getting overly twisted?

• Topoisomerase
• DNA polymerase
• Ligase
• Primase

What enzyme connects the gaps between the Okazaki fragments?

• Topoisomerase
• Single strand binding proteins
• Ligase
• Primase

What holds the strands of DNA apart while they are being replicated?

• Topoisomerase
• Single strand binding proteins
• Ligase
• Primase

What base pairs with adenine?

• thymine
• adenine
• cytosine
• guanine

What base pairs with thymine?

• thymine
• adenine
• cytosine
• guanine

What base pairs with cytosine?

• thymine
• adenine
• cytosine
• guanine

What base pairs with guanine?

• thymine
• adenine
• cytosine
• guanine