Quiz on Mutations

What are mutations?

• Changes in the RNA sequence

• Changes in the protein structure

• Changes in the nucleotide sequence of DNA

• Changes in the amino acid sequence

Which type of mutation is not passed to offspring?

• Frameshift mutations

• Point mutations

• Gametic mutations

• Somatic mutations

What type of mutation may improve an organism's survival?

• Neutral mutations

• Beneficial mutations

• Harmful mutations

• Somatic mutations

What is a common cause of mutations?

• Low oxygen levels

• Chemicals and UV radiation

• Increased temperature

• High pressure

What type of mutation involves the loss of a chromosome segment?

• Duplication

• Translocation

• Deletion

• Inversion

What occurs during a frameshift mutation?

• A single nucleotide is substituted

• A chromosome is duplicated

• One or more nucleotides are inserted or deleted

• A segment of DNA is inverted

What is a nonsense mutation?

• A mutation that does not change the amino acid

• A mutation that creates a stop codon

• A mutation that results in a frameshift

• A mutation that causes a gene to be deleted

What is the result of a missense mutation?

• A stop codon is formed

• The same amino acid is produced

• A different amino acid is produced

• No change occurs

What type of mutation involves the failure of chromosomes to separate during meiosis?

• Deletion

• Nondisjunction

• Duplication

• Translocation

What is a silent mutation?

• A mutation that leads to a stop codon

• A mutation that does not affect the amino acid produced

• A mutation that causes a frameshift

• A mutation that changes the amino acid sequence