Info

Full-length, functional protein

^ A base substitution at one site produces a premature stop codon,...

Base-substitution mutation

Base-substitution mutation

.which halts protein synthesis, resulting in a nonfunctional protein.

Termination of translation

Shortened, nonfunctional protein

Site 1

(first mutation) Site 2

At site 2 is a gene encoding tyrosine-tRNA.

Full-length, functional protein

At site 2 is a gene encoding tyrosine-tRNA.

Site 1

(first mutation) Site 2

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