Ras has an intrinsically slower rate of GTP hydrolysis, so Ras∙GTP requires the assistance of another protein, GAP.

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Mode of  reproduction

Végétatives reproduction-  Tuber, gammae, fragmentation etc.

Sexual reproduction-  Oogamous

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Sex Organs-  Multicellular and jacketed

Male-   Antheridium 

(Biflagellate antherozoids)

Female-  Archegonium 

(flask shaped produce single egg) 

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Life Cycle of bryophytes will not complete in the absence of water, thus they are called as the “Amphibians of the plant kingdom”

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Dehiscence of mature antheridia.

Liberation of antherozoids from antheridia.

Helps in transport of antherozoids

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#Id: 10597

#XL - R Botany

TLS Online TPP Program

#Id: 10598

#XL - R Botany