Question

Why is an insertion or deletion more likely to result in a damaging mutation than a point mutation?

1.Point mutations only change two or three nucleotides

2.Point mutations never change the amino acid that is called for in the protein

3.Insertions/deletions change all codons that follow them, unless they are indels of 3, 6, 9, etc

4.Point mutations cannot result in a stop codon, whereas insertions and deletions can.

Answer 1

Solution

Option 3 is correct.because

• Insertions/deletions change all codons that follow them if addition or deletion is of 1,2,4,5 number of base pairs.
• If addition or deletions are indels of 3, 6, 9, etc. Then it will less leghal.
• 1st option is wrong because point mutation only change 1 nucleotide
• 2nd option is wrong because sometims point mutation changes amino acids in proteins.
• Option 4 is wrong because point and insertion/ deletion mutation results into stop codon.