Question

a tRNA's anticodon is 3`-GAC- 5`. Assume all nucleic acid strings below are 5`-3`. Which of...

a tRNA's anticodon is 3`-GAC- 5`. Assume all nucleic acid strings below are 5`-3`.

Which of the following is the corresponding codon in the mRNA transcript?

a. GUC

b. CTG

c. GAC

d. CUG

Which of the following is the corresponding segment of the coding strand of DNA?

a. CTG

b. GTC

c. GUC

d. CUG

Which of the following is the corresponding segment of the template strand of DNA?

a. CTG

b. GUC

c. CUG

d. GTC

e. CAG

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Homework Answers

Answer #1

A tRNA's anticodon is 3`-GAC- 5`. Assuming all nucleic acid strings given are 5`-3`, the corresponding codon in the mRNA transcript is: d. CUG - This is because the strands need to be anti-parallel to each other, and also because mRNA contains Uracil (U) in place of Thymine (T) as a pyrimidine.

The corresponding segment of the coding strand of DNA: a. CTG - As the mRNA resembles the coding strand but without any Uracil (U) in place of Thymine (T) as a pyrimidine, that happens during the Transcription stage.

Corresponding segment of the template strand of DNA: e. CAG - As the mRNA is synthesized by following this strand as template hence base complementarity can be used to obtain this sequence although it will be in the anti-parallel direction.

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