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Assertion (A) : DNA code is copied in th...

Assertion (A) `:` DNA code is copied in the synthesis of m-RNA.
Reason ( R ) `:` t-RNA moves out of nucleus and after attaching on ribosomes form the template.

A

If both A and R are true and R is the correct explanation of A.

B

If both A and R are true but R is not the correct explanation of A.

C

If A is true but R is false

D

A is false but R is true.

Text Solution

Verified by Experts

The correct Answer is:
C
tRNA is synthesized in the nucleus as a DNA template. Only 0.025% of DNA codes of tRNA . tRNA is an exception to other cellular RNAs in that a part of its ribonucleotide sequence (-CCA) is added after it comes off the DNA template tRNA is formed from only a small part of DNA molecules. Therefore, is does not show any obvious base relationship to DNA.
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