Insertion of nucleotides mutations

Question 1

an insertion mutation is

Answer 1

A mutation that occurs when a nucleotide (with a new base) is randomly inserted into the DNA sequence

Question 2

An insertion mutation changes the

Answer 2

amino acid that would have been coded for by the original base triplet, as it creates a new, different triplet of bases

Remember – every group of three bases in a DNA sequence codes for an amino acid

Question 3

An insertion mutation also has a knock-on effect by changing the triplets (groups of three bases) further on in the DNA sequence

This is sometimes known as a

Answer 3

frameshift mutation

Question 4

An insertion mutation also has a knock-on effect by changing the triplets (groups of three bases) further on in the DNA sequence

This is sometimes known as a frameshift mutation
may

Answer 4

This may dramatically change the amino acid sequence produced from this gene and therefore the ability of the polypeptide to function