1.
Anemophilous flowers usually have
2.
Which of the following is genetically similar to autogamy?
3.
The secondary nucleus is
4.
Triple fusion involves fusion of
5.
The antipodal cells function mainly in
6.
The number of nuclei after first mitotic division of functional megaspore is
7.
The egg cell nucleus is
8.
Entomophilous flowers usually possess
9.
In Polygonum type, megaspore degeneration occurs at
10.
Product of syngamy is
11.
The final nuclear number before cellular organisation is
12.
The embryo sac wall is derived from
13.
The embryo sac shown in Fig. 1.8 belongs to which type?
14.
After second mitotic division, the embryo sac contains
15.
Pollination is best defined as transfer of pollen grains from
16.
The mature embryo sac is best described as
17.
Physical separation of anther and stigma is
18.
The chalazal end is characterised by presence of
19.
Cleistogamous flowers ensure
20.
The egg apparatus is formed at
21.
In double fertilisation, one male gamete fuses with
22.
Cellularisation of embryo sac occurs after
23.
Different timing of anther and stigma maturity is called
24.
Chasmogamous flowers are adapted mainly for
25.
Self-incompatibility is controlled by
26.
Bee pollination is called
27.
Synergids possess a specialised structure called
28.
Transfer of pollen between two flowers of different plants of same species is
30.
Antipodal cells are usually
31.
Which is a reward for pollinators?
32.
Double fertilisation is a characteristic feature of
33.
Which prevents self-pollination genetically?
34.
Hydrophily occurs mostly in
35.
Vallisneria shows which type of pollination?
36.
Which feature is NOT associated with wind pollination?
37.
The central cell becomes highly vacuolated to
38.
Bat pollinated flowers are usually
39.
The functional megaspore develops from
40.
Product of triple fusion is
41.
The two nuclei present in central cell are called
42.
Which pollination type brings genetic variation?
43.
The female gametophyte completes development
44.
Fusion of polar nuclei occurs
45.
Autogamy requires which condition compulsorily?
