Mutation and gene expression

NCERT Biology Class 12, Chapter 5

Mutation and gene expression NEET-UG Biology MCQ

Due to a mutation that changes a coding codon into a termination codon, such a mutation is known as

Amissense mutation

Bnonsense mutation

Ctermination codon mutation

Dframeshift mutation

Correct answer: B. nonsense mutation

A nonsense mutation results in the premature termination of protein synthesis due to a change in a coding codon into a termination codon.

More Mutation and gene expression MCQs

Which of the following is not a term used to describe mutations in structural genes?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 Which mechanism generally causes only a change in gene expression levels?