match the gametophyte with one of the following
Answers
Answer:
Explanation:A small, thallus-like green, flat and heart-shaped structure found in pteridophytes is known as prothallus. It is inconspicuous, small but multicellular free living, mostly photosynthetic thalloid gametophyte. The spores germinate to give rise to prothallus. Gametophyte is the stage in plants which undergo alternation of generation. It reproduces only sexually. The megaspores and microspores germinate and give rise to female and male gametophytes respectively. The gametophytes bear male and female sex organs called antheridia and archegonia respectively. Gametes are multiflagllated. Prothallus is multicellular
The complete question is
Match gametophyte with one of the followings.
options:
A) Prothallus
B) Thallus
C) Cone
D) Strobilus
The correct answer is
Option
A) Prothallus
The gametophyte is the sexual phase in the life cycle of shops and algae.
- It develops commerce organs that produce gametes, haploid commerce cells that partake in fertilization to form a diploid zygote which has a double set of chromosomes.
- A small, thallus- suchlike green, flat and heart-shaped structure set up in pteridophytes is known as prothallus.
- It's an unnoticeable, small but multicellular free-living, mainly photosynthetic thalloid gametophyte.
- The spores germinate to give rise to the prothallus.
- The gametophyte is the stage in shops which suffer alternation of generation. It reproduces only sexually.
- The megaspores and microspores germinate and give rise to womanish and virile gametophytes singly.
- The gametophytes bear virile and womanish commerce organs called antheridia and archegonia singly.
- Gametes are multi-flagellated. Prothallus is multicellular.
- The angiosperm gametophytes are composed of numerous cells and are bedded within the sexual organs of the flower.
- The womanish gametophyte develops within the ovule and generally consists of three antipodal cells, one central cell, two synergid cells, and one egg cell.
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