Size of pollen grain in Myosotis ______.

(a)

10 micrometer

(b)

20 micrometer

(c)

200 micrometer

(d)

2000 micrometer

Arrange the layers of anther wall from locus to periphery

(a)

Epidermis, middle layers, tapetum, endothecium

(b)

Tapetum, middle layers, epidermis, endothecium

(c)

Endothecium, epidermis, middle layers, tapetum

(d)

Tapetum, middle layers endothecium epidermis

Assertion(A) : Sporopollenin preserves pollen in fossil deposits
Reason (R): Sporopollenin is resistant to physical and biological decomposition

(a)

assertion is true; reason is false

(b)

assertion is false; reason is true

(c)

Both Assertion and reason are not true

(d)

Both Assertion and reason are true.

Which of the following aquatic plant is popularly known as the "Terror of Bengal"?

(a)

Eichhornia crassipes

(b)

Vallisneria spiralis

(c)

Pistia stratiotes

(d)

Zostera marina

Which is not a part of mature seed?

(a)

Funiculus

(b)

Testa and tegmen

(c)

hilum

(d)

Chalaza

Identify the mismatched pair:

(a)

Epidermal layer - Protective infunction

(b)

Eridothecium layer - Helps in dehiscence of anther

(c)

Middle layer - Persistent layer

(d)

Tapetum - Nutritive in function

Exalbuminous seeds are ________________

(a)

Pea, castor, paddy

(b)

Paddy, Coconut, Groundnut

(c)

Beans, coconut, castor

(d)

Groundnut, pea, beans

Which is the most common type of style seen in monocots

(a)

Open type

(b)

Closed type

(c)

Solid type

(d)

Half closed type

________________ is a carotenoid derivative of exine layer which provides resistance to pollen grains.

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Sporopollenin

Explain the conventional methods adopted in vegetative propagation of higher plants.

Name the vegetative propagules of the following plants
(a) Allium cepa
(b) Zingiber Officinalis
(c) Agave
(d) Colocasia

Draw and label the structure of a typical pollen grain

Define Homogamy with an example

What is pollen pistil interaction?

List any two strategy adopted by bisexual flowers to prevent self-pollination.

What is polyembryony. How it can commercially exploited.

“Endothecium is associated with dehiscence of anther” Justify the statement

What do you know about bee pollen?

Geitonogamy is similar to autogamy. Justify the statement.

What is apospory?

Cite one common feature and one contrast feature shared between apomixis and parthenocarpy

‘Pollination in Gymnosperms is different from Angiosperms’ – Give reasons.

Describe the development of monosporic embryo sac.