A point mutation that changes a uac codon into a uag codon is a _____ mutation.

Biology

1 answer:

12345 [234]2 years ago

7 0

Answer:

nonsense mutation

Explanation:

A point mutation is a mutation within DNA sequence when a single nucleotide is changed (substitued, deleted, added). They can have various effects depending on the type of point mutation. For example, nonsense mutations are point mutations that result in a premature stop codon. UAC codon codes for the tyrosine amino acid, while UAG is stop codon. A s a consequence, protein product is usually unfunctional because it is incomplete.

Nonsense mutations can cause genetic disorders (e.g. thalassemia).

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