Biology MCQs

Page No. 77

Which of the following virus has special affiliations with the tumor production:


aHepatitis virus


bRetrovirus


cPolio virus


dPox virus


View Answer Retrovirus

The agent of controversial nature causing mad cow infection is_____________?


aBacteria


bCowpox Virus


cAdenovirus


dPrion


View Answer Prion

Which of the following is the smallest known virus:


aHepatitis virus


bRetrovirus


cPolio virus


dPox virus


View Answer Polio virus

An isolated virus is not considered living since it________________?


aSeparates in to two inner parts


bCan not metabolize


cRapidly looses its Genome chemical inert


dIs coated with an air tight shield


View Answer Can not metabolize

Complex symptoms like severe pneumonia vascular tumor sudden weight loss swollen lymph nodes and immune deficiency are features of:


aPolio


bHepatitis


cAIDS


dHIV


View Answer AIDS

Bacteriopahage that infect E. coli are called_____________?


aM type


bN type


cT type


dS type


View Answer T type

Which of the following statement about AIDS is incorrect:


ais a host specific disease


bAn infected mother cannot pass the virus to her baby.


cResults in enlargement of lymph nodes


dCan be prevented.



Attachment of the bacteriophage with the receptor site on the bacterial cell wall involves_______________?


aStrong covalent bond between virion and the receptor site.


bWeek chemical unior between them


cBoth A and B depending upon the phage


dNone of these



Mode of transmission of hepatitis A is__________?


aSerum


bFaeco-oral


cSexual contact


dAll of these


View Answer Faeco-oral

Protein coat the capsid of adenovirus is________________?


aSurrounded by genome


bSurrounding genome


cSurrounding the envelope


dBoth B and C


View Answer Surrounding genome

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