Class 12 Biology

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Asked: October 20, 2021In: Class 12 Biology

In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be:

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Arusi

Asked: October 19, 2021In: Class 12 Biology

The phenomenon observed in some plants wherein parts of the sexual apparatus is used for forming embryos without fertilisation is called:

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Arusi

Asked: October 19, 2021In: Class 12 Biology

In the embryos of a typical dicot and a grass, true homologous structures are:

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Dev Swami

Asked: October 19, 2021In: Class 12 Biology

In an embryo sac, the cells that degenerate after fertilisation are:

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Dev Swami

Asked: October 19, 2021In: Class 12 Biology

From among the situations given below, choose the one that prevents both autogamy and geitonogamy.

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Moti Lal

Asked: October 19, 2021In: Class 12 Biology

Choose the correct statement from the following:

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Shambhu

Asked: October 19, 2021In: Class 12 Biology

From the statements given below choose the option that are true for a typical female gametophyte of a flowering plant:

i. It is 8-nucleate and 7-celled at maturity ii. It is free-nuclear during the development iii. It is situated inside the integument but outside the nucellus iv. It has an egg apparatus situated at the chalazal end

Poll

Shama

Asked: October 19, 2021In: Class 12 Biology

From among the sets of terms given below, identify those that are associated with the gynoecium.

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Shama

Asked: October 19, 2021In: Class 12 Biology

The outermost and innermost wall layers of microsporangium in an anther are respectively

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Bhagvati

Asked: October 19, 2021In: Class 12 Biology

In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is:

12th Biology Chapter-2 Sexual Reproduction in Flowering Plants MCQ Class 12 Science Biology Terminal Exams MCQ Solutions 12th Biology NCERT Syllabus MCQ Questions Class 12th Science Session 2022-2023

Category: Class 12 Biology

In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be:

The phenomenon observed in some plants wherein parts of the sexual apparatus is used for forming embryos without fertilisation is called:

In the embryos of a typical dicot and a grass, true homologous structures are:

In an embryo sac, the cells that degenerate after fertilisation are:

From among the situations given below, choose the one that prevents both autogamy and geitonogamy.

Choose the correct statement from the following:

From the statements given below choose the option that are true for a typical female gametophyte of a flowering plant:

From among the sets of terms given below, identify those that are associated with the gynoecium.

The outermost and innermost wall layers of microsporangium in an anther are respectively

In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is:

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