Match column I with column II and select the correct option from the given codes.

 

      Column - I

 

              Column - II

A.

Parthenocarpy

(i)

Seed formation without fertilization

B.

Polyembryony

(ii)

More than one embryo in same seed

C. 

Apomixis

(iii) 

Seedless fruits without fertilization

D.

Somatic embryogenesis   

(iv)  

Embryo develops from a somatic cell

(1) A - (iv), B - (ii), C - (iii), D - (i)

(2) A - (iii), B - (ii), C - (i), D - (iv)

(3) A - (i), B - (iv), C - (iii), D - (ii)

(4) A - (ii), B - (iii), C - (i), D - (iv)

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The following is the diagram of T.S. of anther. Identify the parts labelled A, B and C.

(1) A - Connective tissue, B - Pollen grains, C - Endothecium

(2) A - Endothecium, B -Connective tissue, C - Pollen grains

(3) A - Pollen grains, B - Connective tissue, C - Endothecium

(4) A - Endothecium, B - Pollen grains, C - Connective tissue

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Select the option that contains all plants which produce non-endospermic seeds.

(1) Gram, Pea, Bean, Groundnut

(2) Castor, Peanut, Orchid, Wheat

(3) Coconut, Walnut, Wheat, Gram

(4) Castor, Maize, Coconu, Orchid

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Pollination in Rafflesia is occurred by

a.   carrion flies

b.   elephant

c.   bat

d.   crow

 

Concept Questions :-

Pollination & Outbreeding Devices
Post Pollination Events
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Censar mechaniism of seed dispersal is found in

(1) Papaveraceae

(2) Liliaceae

(3) Leguminosae

(4) Rosaceae

Concept Questions :-

Pollination & Outbreeding Devices
Post Pollination Events
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Which one of the most common embryo sac in flowering plant?

(1) Monosporic, 8 nucleated and 7 celled

(2) Monosporic, 7 celled and 7 nucleated

(3) Bisporic, 8 nucleated and 7 celled

(4) Bisporic, 7 celled and 8 nucleated

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When a fern plant is developed from its prothallus without fertilisation? This pehnomenon is an example of

(1) parthenocarpy

(2) apogamy

(3) apospory

(4) organogenesis

Concept Questions :-

Apomixis & Polyembryony
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In a flowering plant, the pollen tube first arrives in

(1) egg

(2) an antipodal cell

(3) a synergid

(4) central cell

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If a stock has 2n = 48 and scion microspore mother cell has 2n = 24; then root cell and the microspores will have .... chromosomes respectively.

(1) 12, 48

(2) 48, 12

(3) 24, 12

(4) 24, 96

Concept Questions :-

Stamen: Microsporangium
Stamen: Male Gametophyte
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A fertilized egg of a plant has 40 chromosomes. The number of chromosomes present in the microspore mother cell is

(1) 20

(2) 40

(3) 60

(4) 80

Concept Questions :-

Pistil: Ovule
Pistil: Female Gametophyte
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