The following questions refer to the codon table above.

-If the DNA coding strand reads ATG-CGT-GAC,the amino acid sequence of the resulting polypeptide would be __________.
A) tyrosine $ \rightarrow$ alanine $ \rightarrow$ leucine
B) methionine $ \rightarrow$ arginine $ \rightarrow$ asparagine
C) histidine $ \rightarrow$ glycine $ \rightarrow$ proline
D) serine $ \rightarrow$ lysine $ \rightarrow$ glycine
E) serine $ \rightarrow$lysine $ \rightarrow$ isoleucine

Question

The following questions refer to the codon table above.
 
-If the DNA coding strand reads ATG-CGT-GAC,the amino acid sequence of the resulting polypeptide would be __________.  
A) tyrosine $ \rightarrow$ alanine $ \rightarrow$ leucine 
B) methionine $ \rightarrow$ arginine $ \rightarrow$ asparagine 
C) histidine $ \rightarrow$ glycine $ \rightarrow$ proline 
D) serine $ \rightarrow$ lysine $ \rightarrow$ glycine 
E) serine $ \rightarrow$lysine $ \rightarrow$ isoleucine

Quizplus · Accepted Answer

The DNA coding strand ATG-CGT-GAC corresponds to the mRNA codons AUG-CGU-GAC. Using the codon table, AUG codes for methionine, CGU for arginine, and GAC for aspartic acid. Therefore, the amino acid sequence of the resulting polypeptide would be methionine-arginine-aspartic acid, which corresponds to choice B.

The Following Questions Refer to the Codon Table Above → \rightarrow→

The Following Questions Refer to the Codon Table Above $\rightarrow$