1.
The two nuclei present in central cell are called
2.
Product of triple fusion is
3.
The mature embryo sac is best described as
4.
The secondary nucleus is
5.
Self-incompatibility is controlled by
6.
Fusion of polar nuclei occurs
7.
Which is a reward for pollinators?
8.
Hydrophily occurs mostly in
9.
The final nuclear number before cellular organisation is
10.
Double fertilisation is a characteristic feature of
11.
In Polygonum type, megaspore degeneration occurs at
12.
The egg apparatus is formed at
13.
Cellularisation of embryo sac occurs after
14.
Bat pollinated flowers are usually
15.
Transfer of pollen between two flowers of different plants of same species is
16.
Physical separation of anther and stigma is
17.
Which feature is NOT associated with wind pollination?
18.
Pollination is best defined as transfer of pollen grains from
19.
Which prevents self-pollination genetically?
20.
Triple fusion involves fusion of
21.
Cleistogamous flowers ensure
22.
Product of syngamy is
23.
Synergids possess a specialised structure called
24.
Vallisneria shows which type of pollination?
25.
The embryo sac shown in Fig. 1.8 belongs to which type?
26.
After second mitotic division, the embryo sac contains
27.
Chasmogamous flowers are adapted mainly for
28.
The chalazal end is characterised by presence of
29.
Which of the following is genetically similar to autogamy?
30.
Bee pollination is called
31.
The embryo sac wall is derived from
33.
Different timing of anther and stigma maturity is called
34.
Antipodal cells are usually
35.
In double fertilisation, one male gamete fuses with
36.
Entomophilous flowers usually possess
37.
Anemophilous flowers usually have
38.
The egg cell nucleus is
39.
The number of nuclei after first mitotic division of functional megaspore is
40.
The functional megaspore develops from
41.
Autogamy requires which condition compulsorily?
42.
The antipodal cells function mainly in
43.
Which pollination type brings genetic variation?
44.
The central cell becomes highly vacuolated to
45.
The female gametophyte completes development
