Prepare for NEET Biology Molecular Basis of Inheritance (Mutations) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to analyze point mutations, frameshifts, and their effects.
NEET Questions / Botany / Molecular Basis of Inheritance / Mutations
A mutation changes a codon from UAU (Tyrosine) to UAC (Tyrosine). This is an example of which type of mutation?
Missense mutation
Nonsense mutation
Frameshift mutation
Silent mutation
Transposons, also known as 'jumping genes,' can cause mutations by:
Always causing frameshift mutations.
Only occurring in germ cells.
Inserting themselves into a gene, disrupting its function.
Exclusively causing point mutations.
A point mutation that changes a codon specifying an amino acid into a stop codon is called a:
Missense mutation
Silent mutation
Nonsense mutation
Frameshift mutation
Sickle cell anemia is caused by a mutation that substitutes valine for glutamic acid. This is an example of:
Nonsense mutation
Frameshift mutation
Silent mutation
Missense mutation
Which type of mutation involves the addition or deletion of one or two nucleotides, leading to a shift in the reading frame?
Silent mutation
Missense mutation
Nonsense mutation
Frameshift mutation
A mutation that changes a codon from UUU (phenylalanine) to UUC (phenylalanine) is a:
Missense mutation
Nonsense mutation
Frameshift mutation
Silent mutation
Chromosomal mutations involving changes in the number of chromosomes are known as:
Gene mutations
Point mutations
Frameshift mutations
Ploidy mutations
Which of the following best describes a mutation?
A slow change in the RNA sequence of an organism
A sudden change in the DNA sequence of an organism
A change in the protein structure of an organism
A change in the phenotype of an organism caused by environmental factors
Mutations that occur in germ cells (gametes):
Are never inherited by offspring
Only affect the individual in which they occur
Can be inherited by offspring
Are always beneficial
A point mutation involves:
A change in a whole chromosome
A change in a single nucleotide
The deletion of a whole gene
The duplication of a whole gene
