Respuesta :
Using the theories of mutation, we got that the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene is -
- It introduces a premature stop codon into the mRNA.
A nonsense mutation is the substitution of the single base pair that leads to the appearance of the stop codon where previously there was a codon specifying an amino acid.
A substitution mutation is when one nucleotide is actually swapped out for another. These types of the mutations are the least dangerous of all the DNA mutations.
Hence, the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene is that -It introduces a premature stop codon into the mRNA.
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(Complete question) is:
What is the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene?
A. It has no effect on the amino acid sequence of encoded protein.
B. It introduces a premature stop codon into the mRNA.
C. It alters the reading frame of the mRNA.
D. It changes an amino acid in the encoded protein.
