Table 8.2 $\text { Codon on mRNA and corresponding amino acid }$
$\begin{array}{llll}
\text { UUA } & \text { leucine } & \text { UAA } & \text { nonsense } \
\text { GCA } & \text { alanine } & \text { AAU } & \text { sparagine } \
\text { AAG } & \text { lysine } & \text { UGC } & \text { cysteine }\
\text { GUU} & \text { valine }&\text { UCG, UCU } & \text {serine }
\end{array}$
-(Use Table 8.2.) If the sequence of amino acids coded for by a strand of DNA is serine- alanine- lysine- leucine, the coding for the antisense strand of DNA is

Question

Quizplus · Accepted Answer

The antisense DNA strand is complementary to the mRNA sequence that codes for the amino acids. The mRNA sequence for serine-alanine-lysine-leucine is UCG-GCA-AAG-UUA. The antisense DNA strand is complementary to this, but with DNA bases (T for A, A for U, G for C, C for G), resulting in 5' AGC-GTT-TTC-AAT, which matches option A when considering the directionality of DNA strands.

Table 82 Codon on mRNA and corresponding amino acid \text { Codon on mRNA and corresponding amino acid } Codon on mRNA and corresponding amino acid

Table 82 $\text { Codon on mRNA and corresponding amino acid }$