4 HIV infected people need help and sympathy instead of being shunned by the society.
Explanation:
HIV attacks helper T-cells and destroys them. Thus, makes the immune system weak.
Page 156
Human Health and Disease
263220
Assertion: AIDS is caused by Human Immuno Deficiency Virus (HIV). Reason: It is a member of group ‘retroviruses’.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
It belongs to the group of retrovirus. It has an envelope enclosing the RNA genome.
Page 154
Human Health and Disease
263221
Assertion: Transmission of HIV infection generally occurs by sexual contact with infected person. Reason: HIV is not transmitted by the transfusion of contaminated blood and blood products.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
HIV can be transmitted by the transfusion of contaminated blood and blood products also.
Page 155
Human Health and Disease
263222
Assertion: AIDS leads to a progressive decrease in number of helper T-lymphocytes in the infected person. Reason: HIV virus replicates and produces progeny virus in helper T-lymphocytes which are released in blood.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
AIDS leads to progressive decrease in the number of helper T-lymphocyte because its virus, i.e., HIV replicates in these cells. These virus progenies are released in bloods that attack other helper T-lymphocytes.
4 HIV infected people need help and sympathy instead of being shunned by the society.
Explanation:
HIV attacks helper T-cells and destroys them. Thus, makes the immune system weak.
Page 156
Human Health and Disease
263220
Assertion: AIDS is caused by Human Immuno Deficiency Virus (HIV). Reason: It is a member of group ‘retroviruses’.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
It belongs to the group of retrovirus. It has an envelope enclosing the RNA genome.
Page 154
Human Health and Disease
263221
Assertion: Transmission of HIV infection generally occurs by sexual contact with infected person. Reason: HIV is not transmitted by the transfusion of contaminated blood and blood products.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
HIV can be transmitted by the transfusion of contaminated blood and blood products also.
Page 155
Human Health and Disease
263222
Assertion: AIDS leads to a progressive decrease in number of helper T-lymphocytes in the infected person. Reason: HIV virus replicates and produces progeny virus in helper T-lymphocytes which are released in blood.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
AIDS leads to progressive decrease in the number of helper T-lymphocyte because its virus, i.e., HIV replicates in these cells. These virus progenies are released in bloods that attack other helper T-lymphocytes.
4 HIV infected people need help and sympathy instead of being shunned by the society.
Explanation:
HIV attacks helper T-cells and destroys them. Thus, makes the immune system weak.
Page 156
Human Health and Disease
263220
Assertion: AIDS is caused by Human Immuno Deficiency Virus (HIV). Reason: It is a member of group ‘retroviruses’.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
It belongs to the group of retrovirus. It has an envelope enclosing the RNA genome.
Page 154
Human Health and Disease
263221
Assertion: Transmission of HIV infection generally occurs by sexual contact with infected person. Reason: HIV is not transmitted by the transfusion of contaminated blood and blood products.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
HIV can be transmitted by the transfusion of contaminated blood and blood products also.
Page 155
Human Health and Disease
263222
Assertion: AIDS leads to a progressive decrease in number of helper T-lymphocytes in the infected person. Reason: HIV virus replicates and produces progeny virus in helper T-lymphocytes which are released in blood.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
AIDS leads to progressive decrease in the number of helper T-lymphocyte because its virus, i.e., HIV replicates in these cells. These virus progenies are released in bloods that attack other helper T-lymphocytes.
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Human Health and Disease
263219
Choose the incorrect statement about AIDS.
1 AIDS is caused by HIV.
2 It can be diagnosed using ELISA technique.
3 HIV destroys B-lymphocytes.
4 HIV infected people need help and sympathy instead of being shunned by the society.
Explanation:
HIV attacks helper T-cells and destroys them. Thus, makes the immune system weak.
Page 156
Human Health and Disease
263220
Assertion: AIDS is caused by Human Immuno Deficiency Virus (HIV). Reason: It is a member of group ‘retroviruses’.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
It belongs to the group of retrovirus. It has an envelope enclosing the RNA genome.
Page 154
Human Health and Disease
263221
Assertion: Transmission of HIV infection generally occurs by sexual contact with infected person. Reason: HIV is not transmitted by the transfusion of contaminated blood and blood products.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
HIV can be transmitted by the transfusion of contaminated blood and blood products also.
Page 155
Human Health and Disease
263222
Assertion: AIDS leads to a progressive decrease in number of helper T-lymphocytes in the infected person. Reason: HIV virus replicates and produces progeny virus in helper T-lymphocytes which are released in blood.
1 Both assertion and reason are true and reason is the correct explanation of assertion.
2 Both assertion and reason are true but reason is not the correct explanation of assertion.
3 Assertion is true but reason is false.
4 Both assertion and reason are false.
Explanation:
AIDS leads to progressive decrease in the number of helper T-lymphocyte because its virus, i.e., HIV replicates in these cells. These virus progenies are released in bloods that attack other helper T-lymphocytes.
