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