Question

A mutation limited to substitution of one nucleotide for another is called

• A. Base inversion
• B. Point mutation
• C. Translocation
• D. Frame shift mutation

Answer 1

The correct option is B Point mutation

• An inversion mutation is one type of mutation. Inversion mutations occur when a section of DNA breaks away from a chromosome during the reproductive process and then reattaches to the chromosome in reversed order.
• Point mutation: a mutation affecting only one or very few nucleotides in a gene sequence.
• A chromosome translocation is a chromosome abnormality caused by rearrangement of parts between nonhomologous chromosomes.
• A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read.

So, the correct answer is 'So, the correct answer is ''Point mutation".