Q. No.
Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism?
2. Chromosomal aberrations
3. Genetic drift
4. Recombination
A technique of micro-propagation is:
2. somatic embryogenesis
3. protoplast fusion
4. embryo rescue
Which one of the following is wrong about Chara?
1. upper oogonium and lower round antheridium
2. Globule and nucule present on the same plant
3. Upper antheridium and lower oogonium
4. Globule is male reproductive structure
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?
| 1. | Apical meristem only |
| 2. | Palisade parenchyma |
| 3. | Both apical and axillary meristems |
| 4. | Epidermis only |
Monoecious plant of Chara shows the occurrence of:
| 1. | Stamen and carpel of the same plant |
| 2. | upper antheridium and lower oogonium on the same plant |
| 3. | upper ooganium and lower antheridium on the same plant |
| 4. | antheridiophore and archegoniophore on the same plant |
Product of sexual reproduction generally generates:
1. Prolonged dormancy
2. New genetic combination leading to variation
3. Large biomass
4. Longer viability of seeds
Which part would be most suitable for raising virus-free plants for micro propagation?
1. Bark
2. Vascular tissue
3. Meristem
4. Node
1. autogamy, but not geitonogamy
2. Both geitonogamy and xenogamy
3. geitonogamy, but not xenogamy
4. autogamy and geitonogamy
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