1.
The embryo sac shown in Fig. 1.8 belongs to which type?
2.
Vallisneria shows which type of pollination?
3.
The female gametophyte completes development
4.
The mature embryo sac is best described as
5.
The egg apparatus is formed at
6.
The number of nuclei after first mitotic division of functional megaspore is
8.
Which of the following is genetically similar to autogamy?
9.
The embryo sac wall is derived from
10.
The functional megaspore develops from
11.
Autogamy requires which condition compulsorily?
12.
Pollination is best defined as transfer of pollen grains from
13.
The egg cell nucleus is
14.
After second mitotic division, the embryo sac contains
15.
The secondary nucleus is
16.
In double fertilisation, one male gamete fuses with
17.
Cleistogamous flowers ensure
18.
Anemophilous flowers usually have
19.
In Polygonum type, megaspore degeneration occurs at
20.
Entomophilous flowers usually possess
21.
Different timing of anther and stigma maturity is called
22.
Transfer of pollen between two flowers of different plants of same species is
23.
Product of triple fusion is
24.
Double fertilisation is a characteristic feature of
25.
Synergids possess a specialised structure called
26.
Which prevents self-pollination genetically?
27.
Physical separation of anther and stigma is
28.
Antipodal cells are usually
29.
The antipodal cells function mainly in
30.
Bat pollinated flowers are usually
31.
The two nuclei present in central cell are called
32.
Which feature is NOT associated with wind pollination?
33.
The chalazal end is characterised by presence of
34.
Chasmogamous flowers are adapted mainly for
35.
Which is a reward for pollinators?
36.
Fusion of polar nuclei occurs
37.
Self-incompatibility is controlled by
38.
The final nuclear number before cellular organisation is
39.
Cellularisation of embryo sac occurs after
40.
Hydrophily occurs mostly in
41.
The central cell becomes highly vacuolated to
42.
Which pollination type brings genetic variation?
43.
Bee pollination is called
44.
Product of syngamy is
45.
Triple fusion involves fusion of
