Answer:
none of these codons
Explanation:
In order for mutation to occur to form methionine codon from an isoleucine codon, position 3 must be changed to a G, giving AUG. A secind mutation would then be required at a second site in the AUG codon. since the isoleucine codons, AUA, AUC and AUU does not have a G at position 3, a true reversion can't occur without mutating the position 3 again.
TRUE. A disease that wiped out a rabbit population in an environment would affect the coyote population in the same environment.
Rabbits are the food source of the coyote. If they are wiped out, the coyote will starve and slowly die out.
Since the two codons are for the same amino acid, the mutation doesnt change the phenotypes.
