Which change is a gene mutation?
Answer and explanation
Correct answer: B. A change in the base sequence of a gene
A gene mutation changes the sequence of DNA bases, which may change the protein made.
Answer: A change in the base sequence of a gene.
Why not the others: A change in the number of chromosomes in a gamete during meiosis only: that is a chromosomal change. A change in the shape of a protein due to heat: that is denaturation. A change in the colour of a plant caused by light: that is not genetic.
Answer: A change in the base sequence of a gene.
Why not the others: A change in the number of chromosomes in a gamete during meiosis only: that is a chromosomal change. A change in the shape of a protein due to heat: that is denaturation. A change in the colour of a plant caused by light: that is not genetic.
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