Q.

Against the codon 5’ UAC 3’, what would be the sequence of anti-codon on tRNA?

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a

5’ AUG 3’

b

5’ GUA 3’ 

c

5’ ATG 3’

d

5’ GTA 3’

answer is D.

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Detailed Solution

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In the genetic code, the sequence of three nucleotides in mRNA, known as the codon, specifies a particular amino acid during protein synthesis. The complementary sequence of three nucleotides on tRNA, known as the anticodon, binds to the codon on mRNA during translation.  
The given codon is 5’ UAC 3’, which codes for the amino acid tyrosine. The complementary anticodon on tRNA that binds to this codon is 5’ GUA 3’. This tRNA, with the anticodon 5’ GUA 3’, brings the amino acid tyrosine to the ribosome during translation, allowing it to be incorporated into the growing polypeptide chain.

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