Which type of mutation changes a codon so that it becomes a stop codon?
Answer and explanation
Correct answer: D. A nonsense mutation
- Step 1: A nonsense mutation ends translation early.
Answer
A nonsense mutation.
Why not the others: A missense mutation changes one amino acid.
Practise more Cell Division, Genetics and Molecular Biology.
Free questions with an explanation for every one, and full timed Alberta Diploma Exams mock tests.
More Cell Division, Genetics and Molecular Biology questions
- What is the function of a restriction enzyme?
- Which molecule carries amino acids to the ribosome during translation?
- A heterozygous tall plant is crossed with a short plant. What is the expected ratio of tall to short?
- A colour-blind man (X^c Y) and a carrier woman (X^C X^c) have a child. What is the probability that a daughter is colour-blind?
- What does a pedigree with a trait appearing in every generation, passed from an affected parent to about half the children, suggest?
- A single nucleotide is deleted from a gene. What is the likely result?