1.
Self-incompatibility is controlled by
2.
The central cell becomes highly vacuolated to
3.
Which feature is NOT associated with wind pollination?
4.
The mature embryo sac is best described as
5.
The two nuclei present in central cell are called
6.
Product of triple fusion is
7.
Different timing of anther and stigma maturity is called
8.
The antipodal cells function mainly in
9.
Antipodal cells are usually
10.
In double fertilisation, one male gamete fuses with
11.
In Polygonum type, megaspore degeneration occurs at
12.
Pollination is best defined as transfer of pollen grains from
13.
Bee pollination is called
14.
Hydrophily occurs mostly in
15.
Chasmogamous flowers are adapted mainly for
16.
The final nuclear number before cellular organisation is
17.
Cellularisation of embryo sac occurs after
18.
The chalazal end is characterised by presence of
19.
Which of the following is genetically similar to autogamy?
20.
The number of nuclei after first mitotic division of functional megaspore is
21.
Fusion of polar nuclei occurs
22.
The egg apparatus is formed at
23.
The embryo sac wall is derived from
24.
Cleistogamous flowers ensure
25.
Triple fusion involves fusion of
26.
The female gametophyte completes development
27.
Which pollination type brings genetic variation?
29.
After second mitotic division, the embryo sac contains
30.
The functional megaspore develops from
31.
Which prevents self-pollination genetically?
32.
Double fertilisation is a characteristic feature of
33.
Product of syngamy is
34.
The secondary nucleus is
35.
Autogamy requires which condition compulsorily?
36.
Synergids possess a specialised structure called
37.
Which is a reward for pollinators?
38.
Transfer of pollen between two flowers of different plants of same species is
39.
The egg cell nucleus is
40.
Vallisneria shows which type of pollination?
41.
Anemophilous flowers usually have
42.
Entomophilous flowers usually possess
43.
The embryo sac shown in Fig. 1.8 belongs to which type?
44.
Bat pollinated flowers are usually
45.
Physical separation of anther and stigma is
