Q. Flagellated male gametes are present in all the three of which one of the following sets?
A) Zygnema, Saprolegnia and Hydrilla
B) Fucus, Marsilea and Calotropis
C) Riccia, Dryopteris and Cycas
D) Anthoceros, Funaria and Spirogyra
Explanation
[Solution from source] Riccia (bryophyte) and Dryopteris (pteridophyte) have flagellated antherozoids, and Cycas is the gymnosperm whose male gametes are motile and multiciliate. Each other set includes a plant with non-motile gametes, such as Spirogyra, Zygnema, Hydrilla or Calotropis. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.