HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

Are pollination and fertilization necessary in apomixis?

Explain various categories of apomixis.

Apospory is the direct formation of ______.

Give significance of apomixis.

Explain following term:

Apomixis

Define Parthenocarpy.

How polyembryony can be commercially exploited?

The ______ collect the pollen grains.

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The male whorl, called the ________ produces ________.

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The pollen grains represent the ________.

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The ________contains the egg or ovum.

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________takes place when one male gamete and the egg fuse together. The fertilized egg grows into a seed from which the new plants can grow.

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The ______ is the base of the flower to which other floral parts are attached.

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________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower

Once the pollen reaches the stigma, the pollen tube traverses down the ________ to the ovary where fertilization occurs.

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The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.

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The whorl ________is green that protects the flower until it opens.

Match the column.

What is adventive polyembryony?

Give an account of polyembryony.