Which one gives the most valid and recent explanation for stomatal movements?
1. Transpiration
2. Potassium influx and efflux
3. Starch hydrolysis
4. Guard cell photosynthesis
1. Transpiration
2. Potassium influx and efflux
3. Starch hydrolysis
4. Guard cell photosynthesis
2. Potassium influx and efflux
3. Starch hydrolysis
4. Guard cell photosynthesis
Subtopic: Stomata: 3 | Stomata |
68%
Level 2: 60%+
NEET - 2015
Hints
The hilum is a scar on the:
1. seed, where the funicle was attached
2. fruit, where it was attached to the pedicel
3. fruit, where style was present
4. seed, where micropyle was present
2. fruit, where it was attached to the pedicel
3. fruit, where style was present
4. seed, where micropyle was present
Subtopic: Seed |
71%
Level 2: 60%+
NEET - 2015
Hints
Which one of the following may require pollinators, but is genetically similar to autogamy?
| 1. | Geitonogamy | 2. | Xenogamy |
| 3. | Apogamy | 4. | Cleistogamy |
Subtopic: Pollination & Outbreeding Devices |
88%
Level 1: 80%+
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 |
79%
Level 2: 60%+
NEET - 2015
Hints
Transmission tissue is a characteristic feature of:
1. hollow style
2. solid style
3. dry stigma
4. wet stigma
2. solid style
3. dry stigma
4. wet stigma
Subtopic: Pistil: Ovule |
Level 3: 35%-60%
NEET - 2015
Hints
Subtopic: Asexual Reproduction |
93%
Level 1: 80%+
NEET - 2015
Hints
Links
Which of the following are the important floral rewards to animal pollinators?
1. Colour and large size of the flower
2. Nectar and pollen grains
3. Floral fragrance and calcium crystals
4. Protein pellicle and stigmatic exudates
2. Nectar and pollen grains
3. Floral fragrance and calcium crystals
4. Protein pellicle and stigmatic exudates
Subtopic: Pollination & Outbreeding Devices |
89%
Level 1: 80%+
NEET - 2015
Hints
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
| 1. | Five | 2. | Six |
| 3. | Eight | 4. | Seven |
Subtopic: Mendel’s Laws of Inheritance |
96%
Level 1: 80%+
NEET - 2015
Hints
Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?
1. Transduction
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
Subtopic: Hardy Weinberg Law |
72%
Level 2: 60%+
NEET - 2015
Hints
A technique of micro-propagation is:
1. somatic hybridization
2. somatic embryogenesis
3. protoplast fusion
4. embryo rescue
2. somatic embryogenesis
3. protoplast fusion
4. embryo rescue
Subtopic: Tissue Culture |
Level 3: 35%-60%
NEET - 2015
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