Q. Consider the following statements about sexual reproduction in brown algae? I. Sexual reproduction may be oogamous isogamous or anisogamous II. Union of gametes take place in water or within the oogonium III. The gametes are pear-shaped and bear two laterally attached flagella Which of the statements given above are correct?
A) I and II
B) I and III
C) II and III
D) I, II and III
Explanation
In brown algae, sexual reproduction is isogamous (in Ectocarpales), anisogamous (in Cutleriales) and oogamous (in Fucus, Laminaria, Dictyota, etc). In most of the brown algae, the gametes are pyriform form and flagellated. Fertilisation is external, i.e., the gametes fuse outside the gametangia in water
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.