Question

reviewing dna mutations
which type of mutation results in a frameshift mutation? check all that apply.
substitution
insertion
deletion
point mutation
done
which type of mutation adds one or more base pairs?
insertion
substitution
deletion
done
intro
done
7 of 11

Explanation:

• Frameshift mutation: A frameshift mutation occurs when the reading frame of the DNA sequence is altered. This can happen due to insertions or deletions of base pairs. Insertions add one or more base pairs, and deletions remove one or more base pairs. Since the genetic code is read in triplets (codons), these changes shift the reading frame, leading to a completely different amino acid sequence downstream of the mutation.
• Substitution and point mutation: Substitution (a type of point mutation) replaces one base pair with another. This does not shift the reading frame unless it causes a premature stop codon or changes a codon in a non - disruptive way. But generally, substitution does not result in a frameshift mutation.

Answer:

• For the question "Which type of mutation results in a frameshift mutation? Check all that apply": Insertion, Deletion.
• For the question "Which type of mutation adds one or more base pairs?": Insertion.