Assertion : tRNA recognises its corresponding codon in mRNA.
Reason : For each codon, there is an individual tRNA.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. if both assertion and reason are false.

Answer

c

Explanation

(c) : tRNA has an anticodon loop which has 7 bases, out of which three bases form anticodon for recognising and attching to the codon of mRNA . Since there are 61 codons specifying amino acids, the cell should contain 61 different tRNA molecules, each with a different anticodon. Actually,however, the number of tRNA molecule types discovered is much less than 61. This implies that the anticodons of some tRNA read moer than one codon on mRNA.