Q.

If the base sequence of a codon in mRNA is  5'AUG3', the sequence of tRNA pairing with it must be 

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a

5'AUG3'

b

5'GUA3'

c

5'UAC3'

d

5'CAU3'

answer is B.

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Detailed Solution

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tRNA anti codon loop has complementarity with the mRNA codon. Hence  the sequence of tRNA anticodon would be  5' CAU 3'.

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If the base sequence of a codon in mRNA is  5'−AUG−3', the sequence of tRNA pairing with it must be