Which of the following not an enzyme mediated process
1) G1
and G2
phases of meiosis
2) S-phase of mitosis
3) Pachytene of meiosis-I
4) None of the above

4) None of the above

Explanation:

Enzymes are known for mediating biological or chemical processes.

Meiosis and mitosis both are part of a biological process called cell cycle or cell division.

The cell cycle is mediated by enzyme cyclins and cyclin-dependent kinases (CDK). cyclin-CDK in G1 phase helps to prepare the cell for S phase. cyclin-CDK also drives Pachytene of meiosis-I

During S-phase of mitosis, ubiquitin ligase helps in mitotic spindle assembly.

Hence, the correct answer is "4) None of the above"

the answer will be a) proteins i believe