Multiple Choice Questions

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A branch of science in which. forest crop can be grown in desired pattern is

  • Histology

  • Horticulture

  • Pisiculture

  • siliviculture


D.

siliviculture

Silviculture is the art and science of controlling the establishment, growth, composition, health, and quality of forests and woodlands to meet the diverse needs and values of landowners and society such as wildlife habitat, timber, water resources, restoration, and recreation on a sustainable basis


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Reproducing new plants by cells, instead of seeds, is known as :

  • Mutation

  • antibiotics

  • biofertilizer

  • tissue culture


The first transgenic crop was :

  • pea

  • flax

  • tobacco

  • cotton


The bacterial disease which is found in chickens is :

  • rickets

  • Ranikhets

  • fowl fox

  • fowl cholera


Assertion : Use of fertilizers greatly enhances crop productivity.

Reason : Irrigation is very important in increasing crop productivity.

  • If both Assertion and Reason are true and the reason is the correct explanation of the assertion

  • If both Assertion and Reason are true but the reason is not the correct explanation of the assertion

  • If Assertion is true statement but Reason is false

  • If both Assertion and Reason are false statements


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'Royal jelly' is secreted from

  • hypopharyngeal gland

  • salivary gland

  • milk gland

  • integumentary gland


Assertion: The honey bee queen copulates only once in her life time.

Reason: The honey bee queen can lay fertilized as well as unfertilized eggs.

  • If both Assertion and Reason are true and Reason is the correct explanation of Assertion

  • If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason are false.


sprouting of potato can be prevented in storage by

  • maleic hydrazide

  • gibberellins

  • indole acetic acid

  • cytokinins


Assertion : In plant tissue culture, somatic embryos can be induced from any plant cell.

Reason : Any viable plant cell can differentiate into somatic embryos.

  • If both Assertion and Reason are true and the reason is the correct explanation of the assertion

  • If both Assertion and Reason are true but the reason is not the correct explanation of the assertion

  • If Assertion is true statement but Reason is false

  • If both Assertion and Reason are false statements


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Silk is the secretion of

  • cephalic glands

  • gastric glands

  • buccal glands

  • salivary glands


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