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 Multiple Choice QuestionsMultiple Choice Questions

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11.

Consider the following statements ( I - IV) about organic farming.

I. Utilises genetically modified crops like Bt cotton
II. Uses only naturally produced inputs like compost.
III. Does not use pesticides and urea
IV. Produces vegetables rich in vitamins and minerals.

  • (II), (III) and (IV)

  • (III) and (IV) only

  • (II) and (III) only

  • (II) and (III) only

319 Views

12.

Breeding of crops with high levels of minerals, vitamins and proteins is called

  • somatic hybridization

  • biofortification

  • biomagnification

  • biomagnification

454 Views

13.

Somaclones are obtained by

  • tissue culture

  • plant breeding

  • irradiation

  • irradiation

511 Views

14.

Polyethylene glycol method is used for

  • gene transfer without a vector

  • biodiesel production

  • seedless fruit production

  • seedless fruit production

500 Views

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15.

Which one of the following pairs is wrongly matched?

  • Detergents -Lipase

  • Alcohol- Nitrogenase

  • Fruit juice - pectinase

  • Fruit juice - pectinase

377 Views

16.

Bacterial leaf blight of rice is caused by a species of 

  • Xanthomonas

  • Pseudomonas

  • Alternaria

  • Alternaria

286 Views

17.

Main objective of production/use of herbicide resistant GM crops is to

  • eliminate weeds from the field without the use of manual labour

  • eliminate weeds from the field without the use of herbicides

  • encourage eco- friendly herbicides

  • encourage eco- friendly herbicides

669 Views

18.

In maize, hybrid vigour is exploited by

  • bombarding the seeds with DNA

  • crossing of two inbred parental lines

  • harvesting seeds from the most productive plants

  • harvesting seeds from the most productive plants

462 Views

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19.

In gymnosperms, the pollen chamber represents

  • a cell in the pollen grain in which the sperms are formed.

  • a cavity in the ovule in which pollen grains are stored after pollination

  • an opening in the megagametophyte through which the pollen tube approaches the egg

  • an opening in the megagametophyte through which the pollen tube approaches the egg

621 Views

20.

Which one of the following is a viral disease of poultry?

  • Salmonellosis

  • Coryza

  • New castle disease

  • New castle disease

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