1.
Triple fusion involves fusion of
2.
The embryo sac shown in Fig. 1.8 belongs to which type?
3.
The secondary nucleus is
4.
Cleistogamous flowers ensure
5.
Antipodal cells are usually
7.
Which prevents self-pollination genetically?
8.
Which pollination type brings genetic variation?
9.
Different timing of anther and stigma maturity is called
10.
The egg cell nucleus is
11.
Pollination is best defined as transfer of pollen grains from
12.
After second mitotic division, the embryo sac contains
13.
Bee pollination is called
14.
Transfer of pollen between two flowers of different plants of same species is
15.
The final nuclear number before cellular organisation is
16.
The embryo sac wall is derived from
17.
Entomophilous flowers usually possess
18.
Which of the following is genetically similar to autogamy?
19.
Vallisneria shows which type of pollination?
20.
Synergids possess a specialised structure called
21.
Anemophilous flowers usually have
22.
Physical separation of anther and stigma is
23.
Product of triple fusion is
24.
Cellularisation of embryo sac occurs after
25.
Which is a reward for pollinators?
26.
Fusion of polar nuclei occurs
27.
Hydrophily occurs mostly in
28.
Chasmogamous flowers are adapted mainly for
29.
Double fertilisation is a characteristic feature of
30.
The central cell becomes highly vacuolated to
31.
The functional megaspore develops from
32.
The female gametophyte completes development
33.
The mature embryo sac is best described as
34.
Bat pollinated flowers are usually
35.
The antipodal cells function mainly in
36.
The number of nuclei after first mitotic division of functional megaspore is
37.
The egg apparatus is formed at
38.
In double fertilisation, one male gamete fuses with
39.
The chalazal end is characterised by presence of
41.
Which feature is NOT associated with wind pollination?
42.
Self-incompatibility is controlled by
43.
The two nuclei present in central cell are called
44.
Autogamy requires which condition compulsorily?
45.
In Polygonum type, megaspore degeneration occurs at
