1.
The central cell becomes highly vacuolated to
2.
Which feature is NOT associated with wind pollination?
3.
Entomophilous flowers usually possess
4.
Cellularisation of embryo sac occurs after
5.
Chasmogamous flowers are adapted mainly for
6.
The two nuclei present in central cell are called
7.
Triple fusion involves fusion of
8.
Product of triple fusion is
9.
Double fertilisation is a characteristic feature of
10.
Bat pollinated flowers are usually
11.
The egg cell nucleus is
12.
In double fertilisation, one male gamete fuses with
13.
Transfer of pollen between two flowers of different plants of same species is
14.
Which of the following is genetically similar to autogamy?
15.
The mature embryo sac is best described as
16.
Product of syngamy is
17.
Bee pollination is called
18.
Vallisneria shows which type of pollination?
19.
The number of nuclei after first mitotic division of functional megaspore is
20.
Pollination is best defined as transfer of pollen grains from
21.
After second mitotic division, the embryo sac contains
22.
Which prevents self-pollination genetically?
23.
Synergids possess a specialised structure called
24.
Autogamy requires which condition compulsorily?
25.
Antipodal cells are usually
26.
Hydrophily occurs mostly in
27.
The antipodal cells function mainly in
28.
The functional megaspore develops from
29.
Anemophilous flowers usually have
30.
The chalazal end is characterised by presence of
31.
The embryo sac shown in Fig. 1.8 belongs to which type?
32.
The final nuclear number before cellular organisation is
33.
Which is a reward for pollinators?
34.
Self-incompatibility is controlled by
35.
Physical separation of anther and stigma is
36.
Different timing of anther and stigma maturity is called
37.
Fusion of polar nuclei occurs
38.
Which pollination type brings genetic variation?
39.
Cleistogamous flowers ensure
40.
The embryo sac wall is derived from
41.
The egg apparatus is formed at
42.
The female gametophyte completes development
43.
The secondary nucleus is
44.
In Polygonum type, megaspore degeneration occurs at
