Question

Complete the analogy with respect to structure of sperm
Nebenkern : ' X ' :: Acrosome is formed from : ' Y '

• A. 'X' Mitochondria, 'Y' centrioles
• B. 'X' Nucleus, 'Y' Golgi body
• C. 'X' Mitochondria, 'Y' Golgi body
• D. 'X' Nucleus, 'Y' centrioles

Hint:

Easy memory: Mitochondria $\rightarrow$ Middle piece (energy)
Golgi $\rightarrow$ Acrosome (enzymes)

Answer 1

The Correct Option is C

Concept: Sperm structure consists of head, middle piece, and tail, each derived from specific cellular components during spermiogenesis.
• Nebenkern: Formed by fusion of mitochondria and forms the middle piece of sperm.
• Acrosome: Cap-like structure on sperm head derived from Golgi apparatus.

Step 1: Understand Nebenkern.
Nebenkern is formed by aggregation of mitochondria, which later provide energy for sperm motility.

Step 2: Understand acrosome formation.
Acrosome develops from Golgi body and contains enzymes required for penetration of ovum.

Step 3: Match analogy.
• Nebenkern $\rightarrow$ Mitochondria
• Acrosome $\rightarrow$ Golgi body

Step 4: Evaluate options.
• (A) Incorrect (acrosome not from centrioles)
• (B) Incorrect (Nebenkern not from nucleus)
• (C) Correct
• (D) Incorrect

Step 5: Conclusion.
Thus, the correct analogy is mitochondria and Golgi body. Final Answer: Option (C)