Pattern of sexual complexity from virus to gymnosperm
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The sexual complexity increase from virus to gymnosperm.
Explanation:
- Virus/ Bcateria: The sexual mode of reproduction is very primitive. They reproduce through conjugation.
- Protista: They reproduce sexually and it varies from isogamy to oogamy.
- Fungi: The sexual reproduction occurs through oospores, ascospores and basidiospores present on fruiting bodies.
- Algae: Sexual reproduction takes place through the fusion of two gametes. It can be isogamous, anisogamous and oogamous. The sex-organs are non-jacketed and unicellular.
- Bryophytes: Fertilisation produces zygote that is formed inside the archegonia.
- Pteridophytes: Fusion of gametes results in the formation of a zygote which develops into an embryo.
- Gymnosperm: The sexual mode of reproduction is complex here from the development of gamete to fertilisation.
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