Which of the following is an example of a mutation? Which of the following is an

Question

Which of the following is an example of a mutation? Which of the following is an example of a mutation? A methyl group (-CH3) is added to a cytosine base in DNA An A-T base pair in a gene is changed to a G-C base pair During transcription, RNA polymerase incorporates a U instead of an A (opposite a T in the DNA template) A frog is missing a leg because as an embryo it survived an attack by a predator A phosphate group (-PO_4) is added to an amino acid side chain in a polypeptide, which destroys its function

Explanation / Answer

Answer: B: An A-T base pair in a gene is changed to a G-C base pair

Mutation is a permanaent change of the sequence of nucleotide of the genome in an organism. Here adenosine thymine base pair is changed to guanine cytosine base pair.

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