Question

the sequence of nucleotides in a segment of a dna strand is tacccagtcgttaagagaatc. the image shows the rna codon table.what would be the sequence of amino acids translated from the dna strand?○ met-gln-gly-gln-gln-phe-ser○ met-gly-gln-gln-gln-phe-ser○ met-gly-gly-phe-gln-ser○ met-gln-gly-gln-phe-ser

Explanation:

Step1: Transcribe DNA to mRNA

DNA: TACCCAGTCGTTAAGAGAATC
mRNA: $AUG\ GGU\ CAG\ CAA\ UUC\ UCU\ UAG$
(Note: A↔U, T↔A, C↔G, G↔C; split into codons)

Step2: Match codons to amino acids

• $AUG$ = Met (start)
• $GGU$ = Gly
• $CAG$ = Gln
• $CAA$ = Gln
• $UUC$ = Phe
• $UCU$ = Ser
• $UAG$ = Stop (ends translation)

Step3: Assemble amino acid chain

Combine the matched amino acids, stopping at the stop codon.

Answer:

Met-Gly-Gln-Gln-Phe-Ser