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