Red Algae Reproduction: Non-Motile — NEET Biology
✅ Asked in NEET 2018Which one is wrongly matched?
Which one is wrongly matched?
Answer & NCERT explanation
Correct answer: A — Uniflagellate gametes – Polysiphonia
Polysiphonia is a red alga that produces non-motile gametes (aplanogametes), not uniflagellate gametes. According to NCERT, red algae lack flagella in their reproductive cells. The other matches are correct: brown algae produce biflagellate zoospores, Marchantia has gemma cups for asexual reproduction, and Chlorella is indeed a unicellular organism.
Read more NCERT concept on the PYQ
The red algae usually reproduce vegetatively by fragmentation. They reproduce asexually by non-motile spores and sexually by non-motile
Red algae reproduce through three methods: vegetative fragmentation, asexual reproduction via non-motile spores, and sexual reproduction via non-motile gametes. The key NEET concept is that red algae gametes are NON-MOTILE (lack flagella), unlike green algae and brown algae which produce motile spores and gametes with flagella. Students often confuse red algae with other algae groups, incorrectly remembering them as having flagellated gametes. To remember correctly: red algae = non-motile, brown/green algae = motile structures. This distinction is tested because it's a critical differentiating characteristic used in algal classification and taxonomy.
What does NCERT say about red algae usually reproduce?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.