Mutation and DNA Repair Quiz

What type of mutation involves a change in a single nucleotide that does not affect the amino acid sequence?

• Silent mutation

• Missense mutation

• Nonsense mutation

• Frameshift mutation

Which of the following is a chemical mutagen?

• Nitrous acid

• UV light

• X rays

• DNA polymerase

What is the role of DNA polymerase in DNA repair?

• Proofreading

• Base substitution

• Insertion

• Transposition

Which repair mechanism involves the removal and replacement of damaged DNA using light?

• Photoreactivation repair

• Mismatch repair

• SOS repair

• Glycosylase repair

Which agent can intercalate into DNA and cause frameshift mutations?

• nitrous acid

• ethidium bromide

• 5-bromouracil

• UV light

Tags

NGSS.HS-LS3-2

What agent causes thymine dimers in DNA?

• UV light
• X rays

• ethidium bromide

• DNA polymerase

Mismatch repair of DNA involves

• The correction errors caused by DNA polymerase.

• The synthesis of new DNA strands during replication.
• The repair of DNA damage from UV light.
• The removal of an oxidized guanine

A"jumping gene" is also known as a

Photoreactivation repair is also known as

• enzymatic repair
• light repair
• chemical repair
• dark repair

SOS repair is used when the DNA

• is perfectly intact.
• needs to be degraded.

• has minor point mutation errors.

• is severely damaged or has numerous errors.