Question

Match List I with List II:

List I (Enzyme)	List II (Function)
(A) Cytochrome oxidase	(I) Electron transport system
(B) Topoisomerases	(II) Change linking number
(C) Cohesins	(III) DNA Replication
(D) PCNA	(IV) Cell cycle

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (I), (B) - (III), (C) - (II), (D) - (I)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

Understand the functional roles of each enzyme and match them to their specific processes.

Answer 1

The Correct Option is C

1. Cytochrome oxidase serves as the final enzyme in the electron transport chain, transferring electrons to oxygen to form water and facilitate ATP synthesis.
2. Topoisomerases are enzymes that regulate DNA topology by adjusting its linking number, which is essential for unwinding during replication and transcription.
3. Cohesins are protein complexes vital for DNA replication, ensuring sister chromatids remain linked until segregation.
4. PCNA (Proliferating Cell Nuclear Antigen) is a DNA clamp crucial for DNA replication and repair, and it is also linked to cell cycle progression.