Bead like mucron is present in

A. Helicotylnchus sp.

B. Hirschmaniella sp.

C. Aphelenchoides sp.

D. Tylenchulus sp.

Answer: Option A

Solution(By Examveda Team)

Bead like mucron is present in Helicotylnchus sp.
Helicotylenchus is a genus of nematodes in the family Hoplolaimidae. They are known generally as spiral nematodes. They are among the most common parasitic nematodes of plants; found in corn, bananas, grass and soybeans.
The female is wormlike and straight or spiral-shaped. The male is similar, but with a smaller anterior end.