41.
How many meiotic division are essential in formation of 100 seeds in Cyperaceae family
A
100
B
125
C
150
D
200
Answer :
200
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42.
In which one of the following, both autogamy and geitonogamy are prevented?
A
Maize
B
Wheat
C
Papaya
D
Castor
Answer :
Papaya
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43.
How many meiotic division are required to produce 40 seeds in the Capsella plant
A
50
B
40
C
80
D
20
Answer :
50
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44.
Eight nucleated embryosac is
A
Only monosporic
B
Only Bisporic
C
Only tetrasporic
D
Any of the above
Answer :
Any of the above
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45.
Endosperm nucleus is formed by the fusionof
A
2 nuclei
B
3 nuclei
C
4 nuclei
D
5 nuclei
Answer :
3 nuclei
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46.
Megaspores are produced from the megaspore mother cells after
A
Meiotic division
B
Mitotic division
C
Formation of a thick wall
D
Differentiation
Answer :
Meiotic division
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47.
Essential whorls of a flowers
A
Calyx and Corolla
B
Corolla and Gynoecium
C
Androecium and Gynoecium
D
All of the above
Answer :
Androecium and Gynoecium
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48.
What is the function of germ pore?
A
Emergence of radicle
B
Absorption of water for seed germination
C
Initiation of pollen tube
D
Release of male gametes
Answer :
Initiation of pollen tube
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49.
How many meiotic division are necessary for formation of 100 functional megaspores
A
25
B
50
C
100
D
200
Answer :
100
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50.
The seed of black pepper is
A
Albuminous
B
Exalbuminous
C
Perispermic
D
With fleshy testa
Answer :
Perispermic
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