1.
Pollen grains preserved for palynological studies remain intact due to
2.
Pollen viability is shortest in
3.
The process that converts microspore into pollen grain is
4.
The generative cell divides to form
5.
Pollenkitt is secreted by
6.
Which layer of anther wall degenerates completely after pollen maturation?
7.
Which part of pollen tube enters synergid?
8.
The site of pollen germination is
9.
Vegetative cell of pollen grain is characterised by
10.
The outermost layer of anther wall is
11.
Pollen grains stored in pollen banks are preserved using
12.
Secretory tapetum retains
13.
Which structure is diploid?
14.
Maximum variation in pollen morphology is useful in
15.
The function of germ pore is to
16.
The tapetum is usually
17.
Exine pattern on pollen surface is studied using
18.
The term palynology refers to study of
19.
The four microsporangia in a typical anther are arranged as
20.
Pollen grain is functionally equivalent to
21.
The number of nuclei in a 3-celled pollen grain is
22.
Intine of pollen grain is mainly composed of
23.
Pollen allergy is caused mainly due to
24.
Which of the following does NOT contribute to pollen wall formation?
25.
The number of pollen grains produced from 100 MMCs is
26.
The nutritive role of tapetum is similar to
27.
Callose wall is present around
28.
Which cell degenerates after pollen tube formation?
29.
The central cell of pollen grain later forms
30.
Ubisch bodies are associated with
31.
The exine is absent over
32.
The nutritive tissue for developing pollen is
33.
Which layer becomes fibrous at maturity?
34.
Sporopollenin is synthesised mainly by
35.
The pollen tube wall is mainly composed of
36.
Pollen grains in insect-pollinated flowers are
37.
Amoeboid tapetum is also called
38.
Which structure ruptures first during anther dehiscence?
39.
Dissolution of callose wall is brought about by
40.
A pollen tetrad is formed due to
41.
The male gametes are released in
42.
Sporopollenin is deposited on pollen by
43.
The most resistant biological material known is
44.
In majority of angiosperms, pollen grains are shed at
45.
Which feature ensures pollen survival in air?
