Question

Sexual reproduction is oogamous and accompanied by complex post fertilization developments occurs in –
(a) Chlorophyceae
(b) Rhodophyceae
(c) Phaeophyceae
(d) diatoms

Answer 1

option c: Phaeophyceae✔️✔️

Answer 2

Sexual reproduction is oogamous. accompanied by complex post-fertilization (c) Phaeophyceae.

• Chlorophyceae, Rhodophyceae, and Phaeophyceae are all the classes of algae division of kingdom Plantae.
• Algae undergo sexual, asexual or both types of reproduction.
• Sexual reproduction is also of three types isogamous, anisogamous and oogamous.
• Diatoms reproduce by mitosis in which a cell is divided into two daughter cells.
• In isogamous the gametes produced are similar in shape and size. for example- ulothrix and spirogyra and common in green algae.
• In the oogamous type of sexual reproduction female gametes is large and non-motile while male gametes are small and motile and are commonly found in brown algae or Phaeophyceae. for example- volvox, focus, sargassum, chara etc.