biology 12th cbse

 

Question no1:

   Diphtheria is characterized by

    ANS: Suffocation

Question no2:

    Which of the following glands is enlarged in malaria

     

     ANS: Spleen

Question no3:

   The poisonous substance released as a result of rupturing of schizont in RBC of Malaria        patient is

    ANS: Hemozoin

Question no4:

   Malaria drug is obtained from

    ANS: Bark of cinchona

Question no5:

 Infection of entamoeba histolytica is caused by

  ANS: Contaminated food

Question no6:

   African sleeping sickness is caused by

   ANS: Trypanosoma gambiense

Question no7:

   Which of the following disease is caused by virus

   ANS: Polio

Question no8:

    Which one of the following pairs of disease is Viral as well as transmitted by mosquitoes

     ANS: Yellow fever and dengue

Question no9:

   The largest lymphatic organ in vertebrates is

    ANS: Brain

Question no10:

   An allergic reaction is initiated by antibodies of

   ANS: IgE group

Question no11:

    How many polypeptide chains are present in Gamma ine immunoglobulin

    ANS: 4

Question no12:

   Kufpprs cells are

    ANS: Phagocytic

Question no13:

   Which part of the brain is involved in loss of control when a person drinks alcohol

    ANS: Cerebellum

Question no14:

    Morphine obtained from opium is

    ANS: Tannin

Question no15:

    MOET is a method of

    ANS: Hybridization in cattle