For which of the following disease, there is preventive vaccine?
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Solution
Hepatitis is a viral disease; two subgroups are hepatitis type A virus(HAV) and hepatitis type B virus (HBV). HBV causes serum hepatitis, it is most frequently transmitted by blood, products of blood or blood contaminated instruments. Since only adults are susceptible to HBV, but vaccines are available. While children and young adults are susceptible to HAV, no vaccines are acceptable.
Which one of the following is correct match?
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Solution
Morphine is an opiate narcotic, Bhang is a hallucinogen,Reserpine derived form Rauwolffia, is used as tranquilizer, cocaine is a stimulant.
Which of the following is most infectious disease?
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Solution
We know that HBV causes serum hepatitis.It is most frequently transmitted by blood or by blood contaminated instruments.
Reason of lung cancer
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Solution
Asbestos fibres present in atmosphere due to industrial emission cause lung cancers (asbestosis).
Cancerous cells can easily be destroyed by radiations due to
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Solution
The ability of radiations to kill cells is highest in the tissue with the highest number of dividing cells. Tumour cells proliferate rapidly. Hence, tumours are killed more rapidly by radiations.
Short-lived immunity acquired from mother to foetus across placenta or through mother’s milk to the infant is categorised as
Carcinoma refers to
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Solution
Carcinomas are malignant growths of the epithelial tissue that cover or line body organs.
What is true about T-lymphocytes in mammals?
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Solution
The lymphocytes which differentiate in the thymus are known as the T-lymphocytes. T-lymphocytes are responsible for the cellular immune response.
ELISA is used to detect viruses, where
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Solution
ELISA test is a technique used to detect and quantitate extremely small amount of a protein, antibody or antigen with the help of enzyme. The commonly used enzymes are per oxidase and alkaline phosphatase. Southern blotting and DNA probes are used in molecular analysis of DNA. Catalase is not involved in ELISA.
AIDS is caused by HIV that principally infects:
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Solution
AIDS virus infects T4 lymphocytes (also called Helper cells). Cytotoxic T cells called T8 lymphocytes.