Subdivision Gymnospermae
Subdivision Gymnospermae: Overview
This Topic covers sub-topics such as Gymnosperms, Cycas, Mycorrhiza, Microsporangia, Classification of Gymnosperms, Archegonia, Megasporangia, Strobilus, Microsporophylls, Megasporophyll, Pollination in Gymnosperm and, Morphology of Gymnosperms
Important Questions on Subdivision Gymnospermae
The largest ovules, largest male and female gametes and largest plants are found among
Largest sperms in the plant world are found in
The ‘wing’ of Pinus seed is derived from
Which one is the most advanced from evolutionary point of view?
Pinus differs from mango in having
Mycorrhizae help in the absorption of
The gametophyte is not an independent, free living generation in –
In which of the following organism, pigments are similar to that found in higher plants?
In Pinus gymnosperms, the haploid structure are
In gymnosperms like Pinus and Cycas, the endosperm is
Resin and turpentine are obtained from:
In Pinus, the pollen grain has 6 chromosomes then its endosperm will have ________ chromosomes.
A plant having seeds but lacking flowers and fruits belongs to
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.
Reason R: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements, choose the correct answer from the options given below:
Which of the given species is a living fossil ?
All gymnosperms are ____________ and pollinated by _____________
