- 1(current)
Q. No.In angiosperms, microsporogenesis and megasporogenesis?
1. Occur in anther
2. Form gametes without further divisions
3. Involve meiosis
4. Occur in ovule
Subtopic: Stamen: Male Gametophyte | Pistil: Female Gametophyte |
84%
Level 1: 80%+
NEET - 2015
Hints
Male gametophyte in angiosperms produces?
1. Two sperms and a vegetative cell
2. Single sperm and a vegetative cell
3. Single sperm and two vegetative cells
4. Three sperms
Subtopic: Stamen: Male Gametophyte |
78%
Level 2: 60%+
NEET - 2015
Hints
Which one of the following statements is not true?
| 1. | Pollen grains are rich in nutrients and they are used in the form of tablets and syrups |
| 2. | Pollen grains of some plants cause severe allergies and bronchial afflictions in some people |
| 3. | The flowers pollinated by flies and beetles secrete foul odour to attract them |
| 4. | Honey is made by bees by digesting pollen collected from flowers |
Subtopic: Stamen: Male Gametophyte |
78%
Level 2: 60%+
NEET - 2015
Hints
Male gametophyte with least number of cells is present in:
1. Pteris
2. Funaria
3. Lilium
4. Pinus
1. Pteris
2. Funaria
3. Lilium
4. Pinus
Subtopic: Stamen: Male Gametophyte |
Level 3: 35%-60%
AIPMT - 2014
Hints
Pollen tablets are available in the market for:
| 1. | In vitro fertilization | 2. | Breeding programmes |
| 3. | Supplementing food | 4. | Ex-situ conservation |
Subtopic: Stamen: Male Gametophyte |
91%
Level 1: 80%+
AIPMT - 2014
Hints
Which of the following statements is correct?
| 1. | Sporopollenin can be degraded by enzymes |
| 2. | Sporopollenin in made up of inorganic materials |
| 3. | Sporopollenin can withstand high temperatures as well as strong acids and alkalis |
| 4. | Sporopollenin can withstand high temperatures but not strong acids |
Subtopic: Stamen: Male Gametophyte |
91%
Level 1: 80%+
NEET - 2013
Hints
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is:
1. Cuticle
2. Sporopollenin
3. Lignin
4. Cellulose
2. Sporopollenin
3. Lignin
4. Cellulose
Subtopic: Stamen: Male Gametophyte |
97%
Level 1: 80%+
AIPMT - 2012
Hints
Which one of the following statements is wrong?
| 1. | Vegetative cell is larger than generative cell |
| 2. | Pollen grains in some plants remain viable for months |
| 3. | Intine is made up of cellulose and pectin |
| 4. | When pollen is shed at a two-celled stage, double fertilization does not take place |
Subtopic: Stamen: Male Gametophyte |
92%
Level 1: 80%+
AIPMT - 2012
Hints
Which one of the following is resistant to enzyme action?
1. Cork
2. Wood fibre
3. Pollen exine
4. Leaf cuticle
1. Cork
2. Wood fibre
3. Pollen exine
4. Leaf cuticle
Subtopic: Stamen: Male Gametophyte |
95%
Level 1: 80%+
AIPMT - 2008
Hints
- 1(current)
Q. No.
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