Question

Point mutation involves

• A. Insertion
• B. Change in single base pair
• C. Duplication
• D. Deletion

Answer 1

The correct option is B Change in single base pair

• A point mutation is a type of mutation that causes the replacement of a single base nucleotide of the genetic material, DNA, or RNA.
• Point mutations can have one of three effects.
• First, the base substitution can be a silent mutation where the altered codon corresponds to the same amino acid.
• Second, the base substitution can be a missense mutation where the altered codon corresponds to a different amino acid.
  
• Third, the base substitution can be a nonsense mutation where the altered codon corresponds to a stop signal.