If the nucleotides in the gene were changed as indicated in the mistake sequence, it would be a point mutation.
A point mutation is a type of genetic modification in which only one nucleotide base from the DNA or RNA sequence of an organism is altered, added, or removed. Although DNA alteration, for as by exposure to X-rays or UV radiation, can also cause point mutations, mistakes occurred during DNA replication are most usually the cause of point mutations. Thus, the given statement would be valid for point mutations.
DNA replication is often when point mutations occur. When one double-stranded DNA molecule divides into two single DNA strands, each of which serves as a template for the production of the complementary strand, DNA replication takes place. The entire DNA sequence can be altered by a single point mutation. The amino acid that the nucleotides code for can change if one of the purines or pyrimidines is altered.
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