Biology for IGCSE & O level - Variation And Selection (Section 7 - No. 48)
What is a 'gene mutation' and what can it result in?
A physical change of a gene that can change the structure of a protein.
The removal of a gene. This does not affect any protein.
The removal of a chromosome, but this doesn't affect the gene
A mistake in cell division that changes a set of chromosomes
Explanation
A gene mutation results in a physical change in the gene structure.
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