Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

61.

Pests which only feed and oviposit on crop are called

  • major pests

  • minor pests

  • accidental pests

  • occasional pests


62.

Name one frequently used fungicide

  • griseofulvin

  • chloramphenicol

  • cycocel

  • ethylene


63.

The father of green revolution in India is

  • Calvin

  • Haberlandt

  • Norman Borlaug

  • Swaminathan


64.

In which stage of its life cycle, the silk moth begins to produce silk fibre?

  • 3rd instar larva

  • 4th instar larva

  • 5th instar larva

  • Pupa


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65.

The vector of the kala-azar is

  • Aedes sp

  • Anopheles stephenis

  • Culex fatigans

  • Phlebotomus sp


66.

Which of the following be named for DNA produced from RNA?

  • A- DNA

  • B- DNA

  • C- DNA

  • Z- DNA


67.

Which of the following is not a Green-house gas?

  • N2O

  • CFC

  • O3

  • CO2


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68.

India became a party to 'Convention on biglogical diversity' in the year

  • 1994

  • 1993

  • 1992

  • 1988


A.

1994

Earth summit at Rio de Janeiro (1992) Brazil, promoted convention on Biological Diversity. India became a party to this convention on Biological Diversity in May; 1994.


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69.

Increase of BOD in water leads to

  • increase in the dissolved O2 concentration

  • decrease in the dissolved O2 concentration

  • maintenance of dissolved O2 concentration at the same level

  • no effect on dissolved O2 concentration


70.

Freon gas causing stratospheric O3 depletion is mainly released from

  • refrigerator

  • automobile

  • thermal power plant

  • steel industry


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