I think the answer is A Explanation- :)
B since 10% is passed down to the consumer
<span><span>A DNA sequence AAT - CCG – GTG codes for </span>Asparagine – Proline- Valine.</span> Substitution mutations would be those mutations in which a single nucleotide is substituted with a different nucleotide.
The correct answer is <span>AAT - CCA – GTG because CCG changes to CCA which also codes for the proline. This means that this substitution is a silent mutation because there is no change in amino acid</span>