TLS Online TPP Program

#Id: 10620

#XL - R Botany

IV.Gymnosperm

They are perennials and woody plants

They bear tap roots

Ovules - Orthotropous & covered by single integument

TLS Online TPP Program

#Id: 10621

#XL - R Botany

IV.Gymnosperm

Sexual reproduction-Oogamous

Female gametophyte is made up of n endosperm on which 2-8 archegonia are present

TLS Online TPP Program

#Id: 10622

#XL - R Botany

IV.Gymnosperm

Polyembryony - common

Ovules - seeds

Seeds two or more cotyledons

TLS Online TPP Program

#Id: 10623

#XL - R Botany

IV.Gymnosperm

The gymnosperms are heterosporous; they produce haploid microspores and megaspores

TLS Online TPP Program

#Id: 10624

#XL - R Botany

IV.Gymnosperm

Two types of sporophylls microsporophylls & megasporophylls. 

They from pollen cones (male cones) & seed cones (female cones) respectively

TLS Online TPP Program

#Id: 10625

#XL - R Botany

Mode of reproduction

Heteromorphic alternation of generation

Sporophyte- Diploid

Dominant

Independent

Gametophyte- Haploid

Recessive

Dependent