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  • Zygotic meiosis is characteristic of :Option: 1 MarchantiaOption: 2 Fucus

Zygotic meiosis is characteristic of :

Option: 1

Marchantia


Option: 2

Fucus


Option: 3

Funaria


Option: 4

Chlamydomonas


Answers (1)

best_answer

Types of Life Cycles -

Haplontic life cycle

  • The haplontic life cycle is also known as a monogenic life cycle. In this type of life cycle, haploid generation dominate over the diploid generation
  • The plant body is gametophyte (haploid) and sporophyte (diploid) stage is represented only by Zygote. 
  • The gametophytic plant develops hap­loid gametes in the gametangium. 
  • The fusion between gametes results in the formation of a zygote, the only diploid stage i.e., sporophytic phase of the life cycle.
  • The zygote undergoes meiotic division known as zygotic meiosis and forms four meiospores. 
  • These meiospores develop into haploid plants. The alternation of generations can be interpreted by chromosome number.
  • This type of life cycle is found in the majority of Chlorophyceae like Chlamydomonas, Ulothrix, Oedogonium, Spirogyra, Chara etc. and all members of Xanthophyceae.

Zygotic meiosis occurs in algae. Chlamydomonas is an alga.

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