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Write the characteristic features of anther pollen

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Ques.1 Define the term spermiogenesis.

Ques.2 Write the characteristic features of anther, pollen and stigma of wind pollinated flowers.

Ques.3 Write the name of the organism referred to as ‘Terror of Bengal'. Why is it called so?

Ques.4 Mention the significance of double fertilization in angiosperms.

Ques.5 What is polyembryony? How can it be commercially exploited?

Ques.6

(i)Discuss any three outbreeding devices in angiosperms.
(ii)How is xenogamy different from autogamy?

Ques.7 Given below is a flowchart showing ovarian changes during menstrual cycle. Name the hormones a, b, c responsible for the following events:

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Ques.8 Differentiate between spermatogenesis and oogenesis.

Ques.9

(i) Name X and Y in the given graph:
(ii) How is follicular phase different from luteal phase?
(iii) Define the term menarche.

976_2.png

Ques.10 With the help of a neat labeled diagram, describe the formation of the female gametophyte in angiosperms.

Reference no: EM132195637

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