561. The feeding stage is the life cycle of Plasmodium is

A Merozoite
B Sporozoite
C Cryptozoite
D Trophozoite
Answer :   Trophozoite
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562. Stool of a person contian whitish grey colour due to malfunction of which type of organ

A Pancreas
B Spleen
C Kidney
D Liver
Answer :   Liver
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563. Individuals with a karyotype of 45 chromosome 44 autosome and one sex chromosome have been found to suffering from the abnormality called female dysgenesis or

A Down syndrome
B Turner syndrome
C Klinefelter's syndrome
D Testculer feminsation
Answer :   Turner syndrome
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564. Shivering characterisic of Malaria is caused by

A Schizonts act on reticulo endothelial cells
B Schizonts enter the RBC
C Signet ring is formed
D Moerozoites are liberated with toxin form RBC
Answer :   Moerozoites are liberated with toxin form RBC
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565. Malaria repeats due to

A Erhthrocytic cycle
B Pre-erythrocytic cycle
C Gametogony
D Sprogony
Answer :   Erhthrocytic cycle
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566. Which of the following statements is not true for cancer cells in relation to mutations ?

A Mutations in proto-oncogenes accelerate the cell cycle
B Mutations destroy telomerase inhibitor
C Mutations inactive the cell control
D Mutations inhibit production of telomerase
Answer :   Mutations inhibit production of telomerase
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567. BCG vaccine is a preventive measure against

A Tuberculosis
B Typhoid
C AIDS
D Cholera
Answer :   Tuberculosis
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568. Which are not a type of T-lymphocyte

A Helper
B Supperssor
C Cytotoxic
D Repressor
Answer :   Repressor
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569. Common cold differs from pneumonia in, that :

A Pneumonia is a communicable disease whereas the common cold is a nutritional deficiency disease
B Pneumonia can be prevented by a live attenuated bacterial vaccine whereas the common cold has no effective vaccine
C Pneumonia is caused by a virus while the common cold is caused by the bacterium Haemophilus influenzae
D Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs
Answer :   Pneumonia pathogen infects alveoli whereas the common cold affects nose and respiratory passage but not the lungs
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570. Sleeping sickenss in man is caused by

A Traypanosoma
B Entamoeba
C Plasmodium
D Leishmania
Answer :   Traypanosoma
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