- #1

VanessaN

- 12

- 1

## Homework Statement

Val-tRNA val is the tRNA that carries valine to the ribosome during translation. Which of the following sequences gives an appropriate anticodon for this tRNA?

A. CAU

B. AUC

**C. UAC**

D. GUG

## Homework Equations

There are four different codons for Valine: GUU, GUC, GUA, and GUG.

## The Attempt at a Solution

The answer is C, but I'm just wondering how to approach problems like this in the future.

Since we're looking for the anticodon, and DNA is read 5'---> 3', we would have to flip all 4 codons for Val:

UUG, CUG, AUG, GUG.

Then would we follow complementary base pairing rules to get:

AAC, GAC,

**UAC**, CAC

That way, we get the correct answer, but I'm just wondering if I have the correct method down or if somebody could help explain to me why this is the reason its done this way? Thank you!