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Totipotency is (a) The ability of plants...

Totipotency is
(a) The ability of plants to survive in nutrientless soil
(b) The capacity of plants to survive in water stress conditions
(c) Resistivity of plants against insects/pests
(d) The capacity to generate a complete individual from any cell or explant

A

The ability of plants to survive in nutrientless soil

B

The capacity of plants to survive in water stress conditions

C

Resistivity of plants against insects/pests

D

The capacity to generate a complete individual from any cell or explant

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The capacity to generate a whole plant from any cell/explant is called

In tissue culture capacity to generate a whole plant from any cell/explant is called

Assertion : In tissue culture, whole plant can be produced from plant cell. Reason : The capacity to generate a whole plant from any cell/explant is called totipotentcy.

How many of the following statements given are incorrect ? (i) Pusa Gaurav , a variety of Brassica , is disease resistant for bacteria . (ii) Jaya and Ratna are varieties of wheat . (iii) Method of producing thousands of plants through tissue culture is called micropropagation. (iv) pusa Sawani is a variety of Brassica . (v) Capacity to generate a whole plant from any cell explants is called totipotency.

Timber line is a limit above which (a) Tress are found (b) Trees are absent (c) Plants do not survive (d) Plants occur in abundance

The impact of loss of biodiversity includes (a) decline in plant production (b) lowered resistance to environmental perturbations (c) increased variability in ecosystem processes like plant productivity, water use, pest and disease cycles (d) all of these

Mycorrhiza does not help the host plant in (a) Enhancing its phosphorus uptake capacity (b) Increasing its tolerance to drought (c) Enhancing its resistance to root pathogens (d) Increasing its resistance to insects

Water evaporation from plant parts is called : (a) translocation (b) transpiration (c) guttation (d) tension

CAM helps the plants in (a) Reproduction (b) Conservation water (c) Secondary growth (d) Disease resistance

Genetically modified plants have been useful in increasing: (a) Crop yield (b) Nutritional value of food (c) Tolerance against abiotic stresses (d) All of the above

AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
  1. Totipotency is (a) The ability of plants to survive in nutrientless so...

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  2. Pollen grains are shed at two-celled stage in angiosperms.Find the cor...

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  3. An aquatic plant which is pollinated by water is

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  4. An angiospermic plant has the following charecteristics.Identify the t...

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  5. Select the correct statements about apomitic seeds.a)these seeds are p...

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  6. Paethenocarpic fruits

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  7. A typical angiospermic seed consist of all,except

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  8. Persistent nucellus in the seeds of black pepper is called

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  9. Both autogamy and geitonogamy are prevented in

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  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

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  11. Generative cell of pollen grain

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  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

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  13. The innermost layer of anther wall whose cells nourish the developing ...

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  14. If the chromosome number in a meiotically produced gamete of a plant i...

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  15. Male gametes require water to reach the female gamete in

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  16. China rose is

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  17. Heterogametes are found in

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  18. In flowering plants,which of the following structures is present befor...

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  19. Pollen grains are the carrier of male gametes in

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  20. Syngamy does not occur outside the body of the organism in

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