Multiple Choice Questions

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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


A.

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

Any viable somatic cell of a plant has the ability to form full fledged plants. This ability of plant cell is known as cellular totipotency. Therefore, it is defined as the ability of a single cell to divide and produce all of the differentiated cells in an organisms.


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sprouting of potato can be prevented in storage by

  • maleic hydrazide

  • gibberellins

  • indole acetic acid

  • cytokinins


Silk is the secretion of

  • cephalic glands

  • gastric glands

  • buccal glands

  • salivary glands


The first transgenic crop was :

  • pea

  • flax

  • tobacco

  • cotton


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.


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The bacterial disease which is found in chickens is :

  • rickets

  • Ranikhets

  • fowl fox

  • fowl cholera


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

  • Histology

  • Horticulture

  • Pisiculture

  • siliviculture


'Royal jelly' is secreted from

  • hypopharyngeal gland

  • salivary gland

  • milk gland

  • integumentary gland


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

  • Mutation

  • antibiotics

  • biofertilizer

  • tissue culture


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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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