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

Subtopic:  Stomata: 3 | Stomata |
 72%
NEET - 2015
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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
Subtopic:  Seed |
 71%
From NCERT
NEET - 2015
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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 |
 86%
From NCERT
NEET - 2015
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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 |
 74%
From NCERT
NEET - 2015
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Transmission tissue is a characteristic feature of:

1. hollow style
2. solid style
3. dry stigma
4. wet stigma

Subtopic:  Pistil: Ovule |
NEET - 2015
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In ginger vegetative propagation occurs through:

1. rhizome
2. offsets
3. bulbils
4. runners

Subtopic:  Asexual Reproduction |
 94%
From NCERT
NEET - 2015
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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
Subtopic:  Pollination & Outbreeding Devices |
 89%
From NCERT
NEET - 2015
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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:  Introduction to Genetics: 1 | Introduction to Genetics: 2 |
 95%
From NCERT
NEET - 2015
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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

Subtopic:  Hardy Weinberg Law |
 74%
NEET - 2015
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A technique of micro-propagation is:

1. somatic hybridization
2. somatic embryogenesis
3. protoplast fusion
4. embryo rescue

Subtopic:  Tissue Culture |
NEET - 2015
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NEET 2023 - Target Batch - Aryan Raj Singh
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