Changes in the DNA sequence, or mutations, help drive A) amino acid coding. B) deamination events. C) evolutionary change. Eliminate D) environmental interaction.
Biology · High School · Thu Feb 04 2021
Answered on
Correct option is c (evolutionary change ).
The DNA sequence of a gene determines the amino acid sequence for the protein it encodes. In the protein-coding region of a gene, the DNA sequence is interpreted in groups of three nucleotide bases, called codons. Each codon specifies a single amino acid in a protein.
Instead of causing a change in one amino acid, however, the altered DNA sequence results in a stop signal that prematurely signals the cell to stop building a protein. This type of variant results in a shortened protein that may function improperly, be nonfunctional, or get broken down.