1.
The secondary nucleus is
2.
The egg cell nucleus is
3.
In Polygonum type, megaspore degeneration occurs at
4.
Hydrophily occurs mostly in
5.
Which feature is NOT associated with wind pollination?
6.
The two nuclei present in central cell are called
7.
Product of triple fusion is
8.
Physical separation of anther and stigma is
9.
Entomophilous flowers usually possess
10.
Pollination is best defined as transfer of pollen grains from
11.
Different timing of anther and stigma maturity is called
12.
Which is a reward for pollinators?
13.
The female gametophyte completes development
14.
Self-incompatibility is controlled by
15.
The antipodal cells function mainly in
16.
Vallisneria shows which type of pollination?
17.
Autogamy requires which condition compulsorily?
18.
Cleistogamous flowers ensure
19.
In double fertilisation, one male gamete fuses with
20.
The embryo sac wall is derived from
21.
The mature embryo sac is best described as
22.
Bat pollinated flowers are usually
23.
Which pollination type brings genetic variation?
24.
Anemophilous flowers usually have
25.
Which prevents self-pollination genetically?
26.
Fusion of polar nuclei occurs
27.
Cellularisation of embryo sac occurs after
28.
The central cell becomes highly vacuolated to
29.
Chasmogamous flowers are adapted mainly for
30.
Product of syngamy is
32.
The egg apparatus is formed at
33.
Triple fusion involves fusion of
34.
Which of the following is genetically similar to autogamy?
35.
After second mitotic division, the embryo sac contains
36.
Antipodal cells are usually
37.
Double fertilisation is a characteristic feature of
38.
The embryo sac shown in Fig. 1.8 belongs to which type?
39.
The functional megaspore develops from
40.
The number of nuclei after first mitotic division of functional megaspore is
41.
The chalazal end is characterised by presence of
42.
Transfer of pollen between two flowers of different plants of same species is
43.
Bee pollination is called
44.
Synergids possess a specialised structure called
45.
The final nuclear number before cellular organisation is
