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Biology Test 10 (Part - II)

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Number of Questions: 25
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Tags: AIIET Biology Test AIIET Biology AIIET Biology Exam AIIET Biology Preparation Structural Physiological Evolutionary Systematics Cell theory Evolution Genetics Homeostasis Energy Crop Improvement Hybridisation in Plants to Improve Their Yield
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The quickest method of plant breeding is

  1. introduction

  2. selection

  3. hybridisation

  4. mutation breeding


Correct Option: A

The oldest method of plant breeding is

  1. introduction

  2. selection

  3. hybridisation

  4. mutation


Correct Option: B

The wheat variety introduced from Australia is

  1. ridley

  2. sioux

  3. texas-2

  4. dixie


Correct Option: A

Pomato involves the hybridization of

  1. poppy and potato

  2. potato and tomato

  3. poppy and tamarind

  4. poppy and tomato


Correct Option: B

The earliest place where agriculture began is

  1. Nile valley

  2. Northern India plain

  3. China River Valley

  4. All the above


Correct Option: A

'Sharbati Sonara' is a result of

  1. aneuploidy

  2. polyploidy

  3. hybridisation

  4. mutation


Correct Option: D

The aquatic fern, which is an excellent biofertiliser, is

  1. marsillia

  2. salvinia

  3. azolla

  4. pteridium


Correct Option: C

The first state to achieve the goals of green revolution in India was

  1. Punjab

  2. Kerala

  3. U.P.

  4. West Bengal


Correct Option: A

Vesicular arbuscular mycorrhizae are important for

  1. nitrate nutrition of plants

  2. phosphate nutrition of plants

  3. carbonate nutrition of plants

  4. sulphate nutrition of plants


Correct Option: B

Which N2 fixing bacterium forms loose association with roots of grasses?

  1. Azospirillum

  2. Azotobacter

  3. Rhizobium

  4. Bacillus


Correct Option: A

Agriculture originated about

  1. 17,000 - 23,000 years ago

  2. 27,000 - 33,000 years ago

  3. 7,000 - 13,000 years ago

  4. 700 - 1,300 years ago


Correct Option: C

Total utility of pesticides in India is about

  1. 5.2 M tonnes

  2. 9.2 M tonnes

  3. 11.2 M tonnes

  4. 14.2 M tonnes


Correct Option: B

Which of the following is a nitrogen fixing cynobacteria?

  1. Clostridium

  2. Rhizobium

  3. Anabaena

  4. Azotobacter


Correct Option: C

Additional copies of nif genes for increasing nitrogen fixation have been transferred to

  1. bradyrhizobium

  2. rhizoboium

  3. clostridium

  4. both (1) and (2)


Correct Option: D

Which one of the following is a non-symbiotic biofertilizer?

  1. VAM

  2. Azotobacter

  3. Anabaena

  4. Rhizobium


Correct Option: B

Which one of the following is a phosphate solubilising microorganism?

  1. Bacillus subtilis

  2. Acetobacter diazotroph

  3. Rhizobium radicicola

  4. Azotobacter vinelandii


Correct Option: A

BGA is chiefly used as biofertiliser in the field of

  1. wheat

  2. gram

  3. paddy

  4. mustard


Correct Option: C

Which of the following is source of liquid wax?

  1. Jojoba

  2. Winged bean

  3. Subabul

  4. None of these


Correct Option: A

Which of the following alkaloids is/are good plant insecticides?

  1. Pyrethrum

  2. Nicotine

  3. Cinerine

  4. All of these


Correct Option: D

DDT - a widely used pesticide is a/an

  1. organochlorine

  2. organophosphate

  3. pyrethroid

  4. nicotinoid


Correct Option: A

Integrated pest management includes

  1. biological methods

  2. mechanical methods

  3. chemical pesticides

  4. all of the above


Correct Option: D
Explanation:

 Integrated pest management (IPM), is a broad-based approach that integrates practices for economic control of pests using three methods - biological methods, mechanical methods and chemical pesticides.

Natural insecticide azadirachtin is obtained from

  1. tobacco

  2. neem

  3. fungus

  4. algae


Correct Option: B

Agrochemicals are

  1. pesticides

  2. fertilisers

  3. growth regulators

  4. all of these


Correct Option: D

Pyrethrin is obtained from

  1. carthamus

  2. chyrsanthemum

  3. azadirachta

  4. amaranthus


Correct Option: B

Confusion technique involves

  1. confusing insects by releasing sterile males

  2. laying traps containing pheromones

  3. spraying hydrophobic papers containing pheromones

  4. introducing juvenile hormones at an inappropriate stage


Correct Option: C
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