Question

nucleus is the site of synthesis of
a) DNA
b) RNA
c) t-RNA
d) all

Answer 1

All is syenthesised in the nucleus

Answer 2

Answer: The correct answer is D) All.

The DNA ( deoxyribonucleic acid) is synthesized in the nucleus using the two strands of already existing DNA. This process is called as Replication.

RNA ( ribonucleic acid)  is synthesized from DNA in nucleus by a process which is called as Transcription.

t-RNA ( transfer RNA) is a type of RNA only.

Nucleus is therefore the site of synthesis of DNA as well as RNA.

Thus, option D) is correct.