Multiple Choice Questions

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The first transgenic crop was :

  • pea

  • flax

  • tobacco

  • cotton


C.

tobacco

Transgenic plants are the plants that have been genetically engineered and uses recombinant DNA techniques to create plants with new characteritics. They are identified as GMO or genetically modified organisms. In transgenic plants, specific genes or traits are obtained through genetic engineering or RDT.


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

  • Histology

  • Horticulture

  • Pisiculture

  • siliviculture


sprouting of potato can be prevented in storage by

  • maleic hydrazide

  • gibberellins

  • indole acetic acid

  • cytokinins


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


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

  • Mutation

  • antibiotics

  • biofertilizer

  • tissue culture


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The bacterial disease which is found in chickens is :

  • rickets

  • Ranikhets

  • fowl fox

  • fowl cholera


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


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.


Silk is the secretion of

  • cephalic glands

  • gastric glands

  • buccal glands

  • salivary glands


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'Royal jelly' is secreted from

  • hypopharyngeal gland

  • salivary gland

  • milk gland

  • integumentary gland


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