Biology MCQs

Page No. 117

Which disease can be controlled by vaccination?


aMeasles


bCancer


cDiabetes


dHeart attack


View Answer Measles

Smallest disease causing agents in plants are ?


avirion


bmycoplasma


cviroids


dprions


View Answer viroids

What is the mode of transmission of Hepatitis virus?


aAerosol


bParentral (via blood)


cSkin penetration


dUnknown


View Answer Parentral (via blood)

Protein factory is___________?


anucleus


bribosome


cgolgi complex


dcentriole


View Answer ribosome

Which statement is incorrect for pasteurization?


aIt is used to preserve yogurt and milk


bIt was developed by Louis Pasteur.


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


dIt can be used to preserve vegetables and meat.



Number of chromosomes in E.coli ?


a1


b2


c4


d6


View Answer 1

Astronauts may use which technique to grow fruits and vegetables ?


aTissue culture techniques


bCloning


cPasterisation


dHydroponic culture technique



Messenger RNA is formed in_________?


anucleus


bchloroplast


cmitochondria


dnone of these


View Answer nucleus

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


aMitosis


bReplication


cCloning


dBiological control


View Answer Cloning

Co-enzyme is often formed from ?


alipid


bprotein


cinorganic ion


dvitamin


View Answer vitamin

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