Question

Name the types of mutations.

Answer 1

Mutation

Inheritable change in the nucleotide sequence of the genome of an individual which ultimately changes the genotype of an organism is known as mutation

Types of mutation

Chromosomal mutation - change in the number and arrangement of chromosome

1. Duplication - loss of part of chromosome
2. Deletion - Extra copy made of part of chromosome
3. Inversion - Reverses the direction of part of the chromosome
4. Translocation - Part of one attaches to another chromosome

Gene mutation - Change in the sequence of DNA

Point mutation - Single base substitution in DNA sequence

1. Silent mutation - Change in the sequence of DNA but there is no further impact on the amino acid sequence in a protein
2. Nonsense mutation - Due to point mutation there is a change in the sequence of base pair leading to stop codon
3. Missense mutation - Due to point mutation there is a change in the sequence of base pairs leading to another amino acid code