Answer this biology question please. Thanks in advance?

A peptide consists of ten amino acids of four different kinds.

What is the theoretical minimum number of different tRNA molecules required to translate the

mRNA for this peptide?

A 4       B) 10      C)12        D)30 

Answer is A but how?

2 Answers

  • 1 month ago

    A 4

    Key phrase:  of four different kinds

    tRNA molecules are reused.

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  • 10 amino acids = 30 anticodons = 33 codons

    The question asks for DIFFERENT tRNA, so it can be met arg ser ser ser ser ser ser...

    We know the first one must be met, and I'm not sure about the rest. Just know that (D) is the expected answer, but the wording of the question disagrees

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