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The cell inthe human body invaded by the human immuno-deficiency virus (HIV) is
AIDS is characterized by reduction in the number of helper T-lymphocytes because of HIV infection. It suppresses human immune system due to which any secondary infection may lead to death. T-lymphocytes are main cells of immune system.
Small proteins produced by vertebrate cells in response to viral infections inhibiting viral multiplication are known as
Lipoproteins are conjugated proteins having polypeptides in association with lipids. Immunoglobulins are the constituent of antibodies. Interferons (INFs) area groupof three vertebrate glycoproteins (i.e. a, b, g,)Out of these three α and β are produced within virally infected cells.
Interferon induces among adjacent cells,as antiviral state by inducing synthesis of the enzymes which inhibit the viral production cycle.
Which one of the following acts as a physiological barrier to the entry of micro-organisms in human body ?
Which one of the following is categorised as a parasite in true sense ?
At which stage of HIV infection does one usually show symptoms of AIDS?
Where will you look for the sporozoites of the malarial parasite?
Which of the following is a pair of viral diseases?
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?
The saliva in the mouth and the tears from the eyes belongs to physiological barriers.
The letter T in T-lymphocyte refers to
The letter T in T-lymphocyte refers to thymus. In human anatomy, the thymus is an organ located in the upper anterior portion of the chest cavity just behind the sternum. The thymus gland is a pink-grey organ that lies underneath the top of the breast bone.
Which of the following is a pair of viral diseases?
Common Cold, AIDS is a pair of viral diseases. Viruses are a very common type of infectious disease. Viruses are the smallest life-form existing, since they are not even a single cell. It is almost like they are not a live at all. They are small strands of DNA-like cell material. A virus consists mostly of RNA and cannot survive without host cells.