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Statement I: AIDS is a disorder caused b...

Statement I: AIDS is a disorder caused by HIV.
Statement II: HIV is a virus that damages immune system of its host.

A

Both 1 and 2 are true

B

Both 1 and 2 are false

C

1 is true, but 2 is false

D

1 is false, but 2 is true

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Terms**: - AIDS stands for Acquired Immunodeficiency Syndrome. - HIV stands for Human Immunodeficiency Virus. 2. **Relationship Between HIV and AIDS**: - AIDS is a disorder that is specifically caused by the HIV virus. This means that without HIV, a person cannot develop AIDS. 3. **Mechanism of HIV**: - HIV is a retrovirus that attacks the immune system, specifically targeting T helper cells (CD4 cells). - The virus enters these cells and integrates its genetic material (cDNA) into the host's genome. 4. **Impact on the Immune System**: - As HIV replicates, it leads to a decline in the number of T helper cells. - A critical reduction in these cells compromises the immune system, making the host susceptible to infections and diseases. 5. **Conclusion**: - Both statements are true: - Statement I: AIDS is indeed a disorder caused by HIV. - Statement II: HIV is a virus that damages the immune system of its host. ### Final Answer: Both Statement I and Statement II are true. ---
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