Mutation Basics Quiz

What is a point mutation?

• A mutation that affects a large segment of a chromosome.

• A mutation that occurs when a single nucleotide base is added or deleted.

• A mutation that involves the substitution of one nucleotide for another.

• A mutation that results in the entire chromosome being duplicated.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which of the following mutations does not change the amino acid sequence of a protein?

• Missense mutation

• Nonsense mutation

• Silent mutation

• Frameshift mutation

Tags

NGSS.HS-LS3-2

What is a frameshift mutation?

• A mutation that substitutes one base for another.

• A mutation that involves the insertion or deletion of a nucleotide in the DNA sequence.

• A mutation that changes an amino acid in the protein.

• A mutation that does not affect the protein produced.

Tags

NGSS.HS-LS3-2

Why might a mutation in DNA not affect an organism's traits?

• The mutation occurs in a non-coding region of the DNA.

• The mutation results in a premature stop codon.

• The mutation causes a frameshift in the coding sequence.

• The mutation substitutes one amino acid for a very different one.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which type of mutation is most likely to have a significant impact on the structure and function of a protein?

• Silent mutation

• Missense mutation

• Nonsense mutation

• Frameshift mutation

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

What are mutagens?

• Proteins that repair DNA.

• Factors that cause mutations.

• Enzymes that duplicate DNA.

• Cells that are prone to mutations.

Tags

NGSS.HS-LS3-2

What is a chromosomal mutation?

• A mutation that affects a single nucleotide.

• A mutation that results in the deletion of a whole chromosome.

• A mutation that involves changes in the structure or number of whole chromosomes.

• A mutation that corrects a previously existing mutation.

Tags

NGSS.HS-LS3-2

Which of the following best describes a missense mutation?

• A mutation that results in no change to the amino acid sequence of a protein.

• A mutation that changes one amino acid in a protein to another.

• A mutation that introduces a premature stop codon into the DNA sequence.

• A mutation that removes a segment of DNA.

Tags

NGSS.HS-LS3-2

Why do mutations in somatic cells not affect offspring?

• Because somatic mutations cannot change the DNA sequence.

• Because somatic mutations are always repaired before cell division.

• Because somatic mutations only affect the individual in which they occur and not their gametes.

• Because somatic mutations decrease over time.

Tags

NGSS.HS-LS3-2

Which of the following is a common cause of mutations?

• Eating fruits and vegetables

• Physical exercise

• Exposure to X-rays

• Listening to music

Tags

NGSS.HS-LS3-2