SSC Selection Post 2024 PYQ — Question 42

The correct answer is option 1 i.e. Nucleolus – Synthesis of DNA.

The incorrect match is Nucleolus – Synthesis of DNA. The nucleolus is primarily involved in the synthesis and assembly of ribosomal RNA (rRNA) and ribosome subunits, not DNA synthesis. DNA synthesis occurs in the nucleus but outside the nucleolus, during the S-phase of the cell cycle. The other options are correctly matched: mitochondria produce chemical energy in the form of ATP, ribosomes are responsible for assembling proteins (not ribosomes themselves), and the nucleus stores the cell’s genetic information in the form of DNA. Hence, the nucleolus is not responsible for DNA synthesis, making it the incorrect match.