Question

A DNA segment has AGAGCAATACCAACA nucleotide in a sequence. The segment of polypeptide chain synthesized from this DNA through mRNA has the following amino acid sequence.

• A. Arg Tyr Ser - Cys Trp - Gly
• B. Ser - Arg Tyr - Gly - Cys - Trp
• C. Cys Trp Ser - Gly - Arg - Arg
• D. Tyr - Cys Trp Ser Gly Arg

Answer 1

The correct option is B Ser - Arg Tyr - Gly - Cys - Trp

B. Ser - Arg Tyr - Gly - Cys - Trp

Solution : The mRNA is 5'- UCU CGU UAU GGU UGU -3' and the amino acid sequences for it will be Ser - Arg - Tyr - Gly - Cys from the given codons.

So, the correct answer is " Ser - Arg Tyr - Gly - Cys - Trp".