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Sexual Reproduction in Flowering Plants-CBSE Class 12th NCERT Solution

Jul 24, 2013 14:42 IST

    Get, detailed solutions to the questions of the chapter Sexual Reproduction in Flowering Plants from NCERT textbooks. The objective is to helping students regarding the pattern of answering the question as per the cbse latest marking scheme.Cbse.jagranjosh.com provided you NCERT solutions for classes 12th math and science subjects.


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    Q. Name the parts of an angiosperm flower in which development of male and female gametophyte take place.


    Pollen grains represent the male gametophyte in an angiosperm which develops inside the microsporangia. On the other hand, female gametophytes of angiosperms are formed from the megaspore through the process of reduction division which lies inside the nucellus of ovule.

    Q. What is meant by monosporic development of female gametophyte?


    In the process of megasporogenesis, one megaspore mother cell divides by mitotic division to produce four megaspores. In many angiosperms one megaspore develops into female gametophyte and rest of the three get degenerate. This is termed monosporic development of female gametophyte.

    Q. What is bagging technique? How is it useful in a plant breeding programme?


    Bagging is a technique used to prevent the fertilization of stigma from unwanted pollen by covering the emasculated flower with butter-paper. It is useful in a plant breeding programme because it prevents from unwanted cross pollination.


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