1.
Which of the following is genetically similar to autogamy?
2.
Vallisneria shows which type of pollination?
3.
Autogamy requires which condition compulsorily?
4.
Which prevents self-pollination genetically?
5.
The final nuclear number before cellular organisation is
7.
Anemophilous flowers usually have
8.
The egg cell nucleus is
9.
Triple fusion involves fusion of
10.
In double fertilisation, one male gamete fuses with
11.
The number of nuclei after first mitotic division of functional megaspore is
12.
Bat pollinated flowers are usually
13.
Fusion of polar nuclei occurs
14.
Chasmogamous flowers are adapted mainly for
15.
The embryo sac wall is derived from
16.
After second mitotic division, the embryo sac contains
18.
The mature embryo sac is best described as
19.
Which feature is NOT associated with wind pollination?
20.
Double fertilisation is a characteristic feature of
21.
The central cell becomes highly vacuolated to
22.
The female gametophyte completes development
23.
Entomophilous flowers usually possess
24.
In Polygonum type, megaspore degeneration occurs at
25.
The antipodal cells function mainly in
26.
Different timing of anther and stigma maturity is called
27.
Which pollination type brings genetic variation?
28.
Which is a reward for pollinators?
29.
Cleistogamous flowers ensure
30.
The functional megaspore develops from
31.
Synergids possess a specialised structure called
32.
Hydrophily occurs mostly in
33.
Bee pollination is called
34.
The chalazal end is characterised by presence of
35.
Cellularisation of embryo sac occurs after
36.
Physical separation of anther and stigma is
37.
Product of triple fusion is
38.
Pollination is best defined as transfer of pollen grains from
39.
Antipodal cells are usually
40.
The egg apparatus is formed at
41.
Transfer of pollen between two flowers of different plants of same species is
42.
The embryo sac shown in Fig. 1.8 belongs to which type?
43.
Self-incompatibility is controlled by
44.
The secondary nucleus is
45.
The two nuclei present in central cell are called
