The number of chromosomes in the shoot-tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be:
1. 20
2. 10
3. 40
4. 15
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The product of sexual reproduction generally generates:
1. Large biomass
2. Longer viability of seeds
3. Prolonged dormancy
4. New genetic combinations leading to variations
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The process of sexual reproduction which involves meiosis and syngamy is:
1. | Apomixis | 2. | Amphimixis |
3. | Agamospermy | 4. | Diplospory |
A polyestrous animal is
1. Man
2. Cat
3. Rabbit
4. Horse
Planaria possesses high capacity of
1. Regeneration
2. Alternation of generations
3. Bioluminescence
4. Metamorphosis
In which one pair from the pairs given below, both the plants can be vegetatively propagated by leaf segments?
1. Agave and Kalanchoe
2. Bryophyllum and Kalanchoe
3. Asparagus and Bryophyllum
4.Chrysanthemum and Agave
Vegetative propagation in Mint occurs by
1. Sucker
2. Runner
3. Offset
4. Rhizome
Vegetative propagation in Pistia/Water Hyacinth occurs by
1. Sucker
2. Runner
3.Offset
4. Stolon
Common between vegetative reproduction and apomixis is
1. Both applicable to dicots
2. Both bypass flowering phase
3. Both occur around the year
4.Both produce progeny identical to parent
Which is wrongly matched?
1. Agave – bulbils
2. Penicillium – conidia
3. Water Hyacinth – runner
4. Bryophyllum – leaf buds