Biology MCQs

Page No. 117

Which disease can be controlled by vaccination?


aMeasles

✓


bCancer

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cDiabetes

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dHeart attack

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View Answer Measles

Smallest disease causing agents in plants are ?


avirion

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bmycoplasma

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cviroids

✓


dprions

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View Answer viroids

What is the mode of transmission of Hepatitis virus?


aAerosol

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bParentral (via blood)

✓


cSkin penetration

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dUnknown

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View Answer Parentral (via blood)

Protein factory is___________?


anucleus

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bribosome

✓


cgolgi complex

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dcentriole

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View Answer ribosome

Which statement is incorrect for pasteurization?


aIt is used to preserve yogurt and milk

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bIt was developed by Louis Pasteur.

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cIt involves heating the substance at high temperature for just few sec.

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dIt can be used to preserve vegetables and meat.

✓



Number of chromosomes in E.coli ?


a1

✓


b2

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c4

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d6

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View Answer 1

Astronauts may use which technique to grow fruits and vegetables ?


aTissue culture techniques

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bCloning

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cPasterisation

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dHydroponic culture technique

✓



Messenger RNA is formed in_________?


anucleus

✓


bchloroplast

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cmitochondria

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dnone of these

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View Answer nucleus

Production of genetically identical copies of organisms/cells by asexula reproduction is called ?


aMitosis

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bReplication

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cCloning

✓


dBiological control

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View Answer Cloning

Co-enzyme is often formed from ?


alipid

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bprotein

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cinorganic ion

✖


dvitamin

✓


View Answer vitamin

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