Question

The principal tail piece of human sperm shows the microtubular arrangement of-

• A. $11+2$
• B. $7+2$
• C. $13+2$
• D. $9+2$

Answer 1

The correct option is D $9+2$

The axial filament in the tail of human sperm has 9 + 2 microtubular arrangement like that of flagella and cilia.

So, the correct answer is option-b.