Mutation and gene expression

NCERT Biology Class 12, Chapter 5

Mutation and gene expression NEET-UG Biology MCQ

Huntington gene's first exon shows (CAG)n repeats, with less than 35 repeats considered normal and more than 35 leading to Huntington disease. This mechanism of disease caused by the change in (CAG)n repeat number is known as

Amissense mutation
Bnonsense mutation
Cframeshift mutation
Ddynamic mutation

Correct answer: D. dynamic mutation

Dynamic mutations refer to changes in the number of repeats, such as (CAG)n, leading to genetic disorders like Huntington disease.

More Mutation and gene expression MCQs

Due to a mutation that changes a coding codon into a termination codon, such a mutation is known asWhich of the following is not a term used to describe mutations in structural genes?Which mechanism generally causes only a change in gene expression levels?