WorksheetsMutation Basics Quiz
Total questions: 15
Worksheet time: 12mins
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.
Which of the following mutations does not change the amino acid sequence of a protein?
Missense mutation
Nonsense mutation
Silent mutation
Frameshift mutation
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.
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.
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
What are mutagens?
Proteins that repair DNA.
Factors that cause mutations.
Enzymes that duplicate DNA.
Cells that are prone to mutations.
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.
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.
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.
Which of the following is a common cause of mutations?
Eating fruits and vegetables
Physical exercise
Exposure to X-rays
Listening to music
Which mutation will cause translation to stop?
Mutations 1 and 3 only
Mutation 1 only
Mutation 2 only
Muations 1, 2, 3
Which type of mutation does the model demonstrate?
Deletion
Substitution
Insertion
Translocation
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
T-G-A-C-C-A
T-G-A-G-C-A
