2. Molecular Genetics

Mutations — Quiz

Test your understanding of mutations with 5 practice questions.

Practice Questions

Question 1

Which type of mutation involves a change in a single nucleotide that does not alter the amino acid sequence of the protein?

Question 2

What is the primary mechanism by which UV radiation causes DNA damage?

Question 3

Which of the following describes a mutation where a purine base is replaced by another purine base, or a pyrimidine base is replaced by another pyrimidine base?

Question 4

Which DNA repair pathway involves the direct reversal of DNA damage, such as the repair of pyrimidine dimers by photolyase?

Question 5

A point mutation in the coding sequence of a gene leads to the replacement of an amino acid with a chemically similar amino acid. This type of missense mutation is often referred to as a: