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