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Published on: 24/05/2021
QB365 Provides the updated NCERT Examplar Questions for Class 12 Biology, and also provide the detail solution for each and every ncert examplar questions , QB365 will give all kind of study materials will help to get more marks
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Questions + Answers key
Take MCQ Biology Test1.
What is the disadvantage of self-pollination?
2.
Give the name of the common function that cotyledons and nucellus perform
3.
Why are pollen grains produced in enormous quantity in Maize?
4.
What is nucellus?
5.
Name the part of gynoecium that determines the compatible nature of pollen grain.
1.
( )
Disadvantage is that continuous, self-pollination causes inbreeding depression.
2.
( )
The common function of nucellus and cotyledons are:
(i) storage of reserve food material
(ii) nourishment of embryo and embryo sac respectively
3.
( )
Maize plants are pollinated by wind (Anemophilous) and it is the property of wind pollinated flowers to produce enormous quantity of small pollen grains to ensure pollination.
4.
( )
It is the mass of parenchymatous tissue surrounded by integuments in an ovule. It encloses embryo sac and provides nourishment to the developing embryo
5.
( )
Stigma
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