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Test: AIDS (NCERT) - Grade 12 MCQ


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10 Questions MCQ Test - Test: AIDS (NCERT)

Test: AIDS (NCERT) for Grade 12 2024 is part of Grade 12 preparation. The Test: AIDS (NCERT) questions and answers have been prepared according to the Grade 12 exam syllabus.The Test: AIDS (NCERT) MCQs are made for Grade 12 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: AIDS (NCERT) below.
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Test: AIDS (NCERT) - Question 1

The genetic material of HIV is

Detailed Solution for Test: AIDS (NCERT) - Question 1

HIV which causes AIDS is a retrovirus that contains single stranded RNA (SSRNA) as its genome

Test: AIDS (NCERT) - Question 2

Which one of the following statements is true?

Detailed Solution for Test: AIDS (NCERT) - Question 2

When HIV enters into the body of a person,it moves into macrophages where RNA genome of the virus replicates to form viral DNA with the help of enzyme reverse transcriptase. This viral DNA gets incorporated into cethe host cell's DNA and directs the infected cells to produce more viruses. The macrophages producing viruses, thus act as HIV enters into helper T-cells where it replicates and produces other virus. this is repeated so that the number of helper T-cells decreases in the body of the infected person. Dysentery (Bacillary) plaque and diphtheria are bacterial diseases, Ringworm appears during summer and rainy season. Widal test is used for confirmation of typhoid.

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Test: AIDS (NCERT) - Question 3

 AIDS is characterized by

Detailed Solution for Test: AIDS (NCERT) - Question 3

AIDS is caused by HIV. When HIV enters into helper T-cells, it replicates and produces other viruses that kill the helper T-cells. Thus the number of T-cells decrease in the body of the infected person and the person starts suffering from various infections.

Test: AIDS (NCERT) - Question 4

The figure given below shows mode of action of AIDS virus. Identify steps A, B, C, D and E labelled in it.

Detailed Solution for Test: AIDS (NCERT) - Question 4

Reverse transcription takes place during the formation of viral genomic RNA from DNA.

Test: AIDS (NCERT) - Question 5

The abbreviation AIDS stands for

Detailed Solution for Test: AIDS (NCERT) - Question 5

AIDS (Acquired immuno deficiency syndrome) is human immunodeficiency syndrome, a series of diseases caused by the human immunodeficiency virus or HIV. It may also be referred to as HIV disease or HIV infection.

Test: AIDS (NCERT) - Question 6

Which of the following is not a cause of transmission of HIV?

Detailed Solution for Test: AIDS (NCERT) - Question 6

By mosquitoes, ticks, or other insects. Through saliva, tears, or sweat. By hugging, shaking hands, sharing toilets, sharing dishes, or closed-mouth or “social” kissing with someone who has HIV. Through other sexual activities that don't involve the exchange of body fluids (for example, touching).

Test: AIDS (NCERT) - Question 7

AIDS is widely diagnosed by

Detailed Solution for Test: AIDS (NCERT) - Question 7

AIDS is diagnosed by ELISA (Enzyme-linked Immunosorbent Assay) test.

Test: AIDS (NCERT) - Question 8

Identity A, B, C, D and E in the below diagram of HIV virus.

Detailed Solution for Test: AIDS (NCERT) - Question 8

HIV virus consists of a protein capsid that encloses a couple of single-stranded RNA molecules and the enzyme Reverse transcriptase which would help the virus to convert to DNA in the host cell. There is an outer envelope covering the capsid which is made up of lipids in which are embedded the envelope proteins.

Test: AIDS (NCERT) - Question 9

Which of the following is celebrated as 'World AIDS Day'?

Detailed Solution for Test: AIDS (NCERT) - Question 9

Every year, World AIDS Day is celebrated on December 1. This day is celebrated not only to spread awareness about the disease but also to remind the people and the governments that HIV has not gone away.

Test: AIDS (NCERT) - Question 10

The human immuno deficiency virus is

Detailed Solution for Test: AIDS (NCERT) - Question 10

AIDS is caused by the human immunodeficiency virus (HIV), a member of a group of virus called retroviruses which have an envelope enclosing RNA genome.

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