Question

A double stranded molecule with the sequence shown here produces, in vivo, a polypeptide that is five amino acids long. TAC ATG ATC ATT TCA CGG AAT TTC TAG CAT GTA

ATG TAC TAG TAA AGT GCC TTA AAG ATC GTA CAT
i. Write the sequence of the mRNA transcript and label the strands.
ii. Write the sequence of animo acids produced if the translation of the gene occurs​

Answer 1

Step-by-step explanation:

i. The mRNA transcript sequence is:

AUG UAC UAG UAA AGU GCC UUA AAG AUC GUA CAU

The top strand (TAC ATG ATC ATT TCA CGG AAT TTC TAG CAT GTA) is the template strand or antisense strand, and the bottom strand (ATG TAC TAG TAA AGT GCC TTA AAG ATC GTA CAT) is the coding strand or sense strand.

ii. The sequence codes for the polypeptide Met-Tyr-Stop, assuming that the start codon is AUG and the stop codons are UAG, UAA, and UGA.

Answer 2

i. The mRNA transcript of the given DNA sequence is:

AUG UAC UAG UAA AGU GCC UUA AAG AUC GUA CAU

The top strand is the coding strand (also called the sense strand), and the bottom strand is the template strand (also called the antisense strand).

ii. The sequence of amino acids produced if the translation of the gene occurs is:

Met-Tyr-Stop