Mutation Mastery Quiz

What is a mutation?

• A process by which the number of chromosomes in a cell is increased

• A permanent alteration in the DNA sequence that makes up a gene

• A temporary change in a protein's structure

• The process by which cells divide

What is a point mutation?

• A mutation affecting only one or very few nucleotides in a gene sequence

• A mutation that results in the deletion of a part of a chromosome

• A mutation that involves the addition of extra chromosomes

• A mutation that changes every nucleotide in a gene

Which type of mutation involves the removal of one or more nucleotide pairs from a gene?

• Insertion mutation

• Substitution mutation

• Deletion mutation

• Chromosomal mutation

What is a frameshift mutation?

• A mutation that shifts the "reading" frame of the genetic message by inserting or deleting nucleotides

• A mutation that replaces one nucleotide with another

• A mutation that duplicates entire sections of DNA

• A mutation that does not affect the protein produced by the gene

What is a chromosomal mutation?

• A mutation that affects the entire chromosome structure

• A mutation that occurs at a single point in the DNA sequence

• A mutation that results in the production of a different amino acid

• A mutation that corrects a previously existing mutation

Which type of mutation results in the replacement of one nucleotide with another?

• Deletion mutation

• Insertion mutation

• Substitution mutation

• Frameshift mutation

What is an insertion mutation?

• The removal of nucleotides from a DNA sequence

• The addition of one or more nucleotides into a DNA sequence

• The replacement of a nucleotide with a different nucleotide

• The rearrangement of parts of chromosomes

How does a frameshift mutation differ from a substitution mutation?

• A frameshift mutation does not change the DNA sequence, while a substitution mutation does

• A frameshift mutation involves the insertion or deletion of nucleotides, affecting the reading frame, while a substitution mutation replaces one nucleotide with another without affecting the reading frame

• A frameshift mutation corrects errors in DNA, while a substitution mutation introduces errors

• There is no difference; they are the same type of mutation

Which mutation could potentially have the most dramatic effect on the resulting protein?

• Point mutation

• Frameshift mutation

• Substitution mutation

• Deletion mutation

What is the main difference between a chromosomal mutation and a point mutation?

• A chromosomal mutation affects the entire genome, while a point mutation affects only one gene

• A chromosomal mutation affects the structure or number of chromosomes, while a point mutation affects only a single nucleotide within a gene

• A chromosomal mutation can be corrected by cellular mechanisms, while a point mutation cannot

• There is no significant difference; both terms describe the same phenomenon