Question

mutations can be harmful, helpful, or neutral in their effect. a silent mutation tends to have a neutral effect as it does not result in coding for a different amino acid. using your mrna codon chart, give another mrna codon that this cuu could mutate to and still code for leucine. 4. the mrna codon cuu could mutate to c______ and still code for leucine, which would not change the amino acid. mrna codon: cuu codes for amino acid leucine

Explanation:

Step1: Recall mRNA codon chart

The mRNA codon chart shows that multiple codons can code for the same amino acid (degeneracy of the genetic code). For leucine, the codons are CUU, CUC, CUA, CUG, UUA, UUG.

Step2: Identify a codon with 'C' start

We need a codon starting with 'C' (as the first blank is after 'C') that codes for leucine. From the leucine codons, CUC, CUA, or CUG are options. Let's take CUC (or CUA, CUG). For example, CUU can mutate the third base (U to C) to get CUC, which still codes for leucine.

Answer:

CUC (or CUA, CUG - any of these that start with C and code for leucine. Here, a common one is CUC)