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HIV that causes AIDS, first starts destroying:
Options
(a) Leucocytes
(b) Helper T- Lymphocytes
(c) Thrombocytes
(d) B- Lymphocytes
Correct Answer:
Helper T- Lymphocytes
Explanation:
Untreated HIV disease is characterized by a gradual deterioration of immune function. Most notably, crucial immune cells called CD4 positive (CD4+) T cells are disabled and killed during the typical course of infection. These cells, sometimes called T-helper cells, play a central role in the immune response.
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Topics: Human Health and Disease
(70)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The process by which plasma membrane transports substances out of the cell
- In higher plants the shape of the chloroplast is
- The gelatinous membrane covering the sensory hair cells of the ear is known as
- Which one of the following is the characteristic of epithelial tissues
- A health disorder that results from the deficinecy of thyroxine in adults
Topics: Human Health and Disease (70)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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As learnt in
Replication of retrovirus –
Virus attack T-lymphocytes
– wherein
During this period, the person suffers from bouts of fever, diarrhoea and weight loss. Due to decrease in the number of helper T lymphocytes, the person starts suffering from infections that could have been otherwise overcome such as those due to bacteria
especially Mycobacterium, viruses, fungi and even parasites like Toxoplasma. The patient becomes so immuno-deficient that he/she is unable to protect himself/herself against these infections.