Select Chapter Topics:
Q. No.What are the types of gametes produced in staminate and Pistil late flowers-
1. Female and male gametes respectively
2. Male and female gametes respectively
3. Both male gametes
4. Both female gametes
1. Female and male gametes respectively
2. Male and female gametes respectively
3. Both male gametes
4. Both female gametes
Subtopic: FLOWER – A FASCINATING ORGAN OF ANGIOSPERMS |
89%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
The differentiation of the male and female reproductive structures in a flower leads to the formation of:
1. Sepals and petals
2. Androecium and gynoecium
3. Anthers and ovules
4. Filaments and stigmas
1. Sepals and petals
2. Androecium and gynoecium
3. Anthers and ovules
4. Filaments and stigmas
Subtopic: FLOWER – A FASCINATING ORGAN OF ANGIOSPERMS |
82%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
A typical angiosperm embryo sac is
1. 6-celled, 8-nucleate
2. 8-celled, 7-nucleate
3. 7-celled, 8-nucleate
4. 3-celled, 8-nucleate
Subtopic: Pistil: Female Gametophyte |
100%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Pollen grains are well-presserved as fossils because of the presence of
1. Pollenkitt
2. Sporopollenin
3. Petco-cellulose
4. Ligno-cellulose
Subtopic: Stamen: Male Gametophyte |
99%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Some flowers selected for artificial hybridization, do not require emasculation but bagging is essential for them. Select an appropriate reason-
| 1. | to prevent contamination of its stigma with unwanted pollen grains |
| 2. | to prevent contamination with dust |
| 3. | to protect from predators |
| 4. | to ensure optimal temperature |
Subtopic: Pollination & Outbreeding Devices |
98%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
During microsporogenesis in flowering plants, each microspore mother cell undergoes meiosis to produce how many microspores, and what is their arrangement called when they remain together temporarily?
1. Two microspores; dyad
2. Four microspores; tetrad
3. Four microspores; triad
4. Eight microspores; octad
1. Two microspores; dyad
2. Four microspores; tetrad
3. Four microspores; triad
4. Eight microspores; octad
Subtopic: Stamen: Microsporangium | Pre-fertilisation: Structures and Events |
97%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
What would be the fate of a Microspore if the tapetum is not developed in the Microsporangium?
1. Microspores will undergo meiosis
2. Nourishment will be deprived to microspores
3. There will be no change
4. Microspores will undergo mitosis
1. Microspores will undergo meiosis
2. Nourishment will be deprived to microspores
3. There will be no change
4. Microspores will undergo mitosis
Subtopic: Stamen: Microsporangium |
98%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
The devices to discourage self pollination are.
1. Pollen release and stigma receptivity is not synchronised
2. Anther and stigma are placed at different position
3. Rejection of pollen by stigma of the same flowers
4. All of these
1. Pollen release and stigma receptivity is not synchronised
2. Anther and stigma are placed at different position
3. Rejection of pollen by stigma of the same flowers
4. All of these
Subtopic: Pollination & Outbreeding Devices |
97%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
It is possible to store pollen grains of a large number of species for years in liquid nitrogen at:
1. 0°C
2. 4°C
3. -196°C
4. -273°C
1. 0°C
2. 4°C
3. -196°C
4. -273°C
Subtopic: Stamen: Male Gametophyte |
97%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Pollen wall contains sporopollenin which is one of the most resistant organic materials. It is found in
1. Exine
2. Intine
3. Both exine and intine
4. Endexine and intine
Subtopic: Stamen: Male Gametophyte |
97%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.