Identify the algal class with NO flagella on its motile cells.
AAll three classes have flagellated cells
BChlorophyceae (2-8 flagella, equal, apical)
CPhaeophyceae (2 flagella, unequal, lateral)
DRhodophyceae — flagella ABSENT; gametes are NON-MOTILE; sexual reproduction is oogamous with non-motile gametes
Answer & Solution
Correct answer: D. Rhodophyceae — flagella ABSENT; gametes are NON-MOTILE; sexual reproduction is oogamous with non-motile gametes
Red algae (Rhodophyceae) lack flagella — gametes are non-motile, complex post-fertilisation development. Chloro: 2-8 equal apical; Phaeo: 2 unequal lateral; Rhodo: absent (per Table 3.1).
Related questions
Which of the following plants bears naked seeds?What percentage of India's ~17,500 angiosperm species are ENDEMIC (found only in India)?The anti-cancer drug VINBLASTINE / VINCRISTINE comes from which plant?AGAR, used in microbiology and food gelling, is extracted from:In a haplodiplontic life cycle (like mosses and ferns), the two multicellular phases are:Monocot leaves typically have which type of leaf venation?Banana is classified as a:The brown algae (Phaeophyceae) like Sargassum derive their colour from the pigment: