The variations caused by genetic modification lead to alterations in the organism's genome. Such changes express traits in ways that differ from the typical. These variations can cause genetic mutations that may be passed down generations.
In the case of sexual reproduction, the organism's genome remains unchanged. Here, only an exchange occurs between the alleles inherited from each parent, and this does not result in mutations.
The right answer is B. DNA helicase initially unwinds the double helix surrounding the +1 site.
Degeneracy
Degeneracy indicates that several codons can encode for the same amino acid during the process of protein synthesis from DNA. A codon comprises a triplet of <span>nucleotides that represents a specific amino acid.
This redundancy means that mutations (like point mutations) are less likely to disrupt the synthesis of proteins. For instance, if the codon sequence GAA, which represents glutamate, changes to GAG, glutamate will still be produced as the code is degenerate. </span>
