1.
After second mitotic division, the embryo sac contains
2.
Product of triple fusion is
3.
Which feature is NOT associated with wind pollination?
4.
The central cell becomes highly vacuolated to
5.
The secondary nucleus is
6.
Bee pollination is called
7.
Anemophilous flowers usually have
8.
The mature embryo sac is best described as
9.
The chalazal end is characterised by presence of
10.
Entomophilous flowers usually possess
11.
Triple fusion involves fusion of
12.
Chasmogamous flowers are adapted mainly for
13.
Which of the following is genetically similar to autogamy?
14.
The antipodal cells function mainly in
15.
Which is a reward for pollinators?
16.
In double fertilisation, one male gamete fuses with
17.
The embryo sac wall is derived from
18.
Which prevents self-pollination genetically?
19.
Antipodal cells are usually
20.
Transfer of pollen between two flowers of different plants of same species is
21.
The final nuclear number before cellular organisation is
23.
The egg cell nucleus is
24.
Pollination is best defined as transfer of pollen grains from
25.
In Polygonum type, megaspore degeneration occurs at
26.
Double fertilisation is a characteristic feature of
27.
Self-incompatibility is controlled by
28.
Product of syngamy is
29.
Which pollination type brings genetic variation?
30.
The female gametophyte completes development
31.
Fusion of polar nuclei occurs
32.
The embryo sac shown in Fig. 1.8 belongs to which type?
33.
Different timing of anther and stigma maturity is called
34.
Cleistogamous flowers ensure
35.
The two nuclei present in central cell are called
36.
Hydrophily occurs mostly in
37.
The egg apparatus is formed at
38.
The number of nuclei after first mitotic division of functional megaspore is
39.
Synergids possess a specialised structure called
40.
The functional megaspore develops from
41.
Cellularisation of embryo sac occurs after
42.
Physical separation of anther and stigma is
43.
Bat pollinated flowers are usually
44.
Autogamy requires which condition compulsorily?
45.
Vallisneria shows which type of pollination?
