Explore topic-wise MCQs in Biology.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

AIDS was first reported in ___________

A. Brazil
B. USA
C. Cuba
D. Nigeria
Answer» C. Cuba
2.

The name of the AIDS-causing virus was given by ICBN.

A. True
B. False
Answer» C.
3.

Which of the following glycoproteins on the protein coat of virus helps it in the attachment of the virus to CD4 receptors?

A. GP120
B. GP41
C. GP121
D. GP182
Answer» B. GP41
4.

In which year AIDS infection was detected in India?

A. 1981
B. 1972
C. 1986
D. 1982
Answer» D. 1982
5.

The genetic material of AIDS virus is _________

A. single-stranded DNA
B. single-stranded RNA
C. double-stranded DNA
D. double-stranded RNA
Answer» C. double-stranded DNA
6.

Which of the following cells behave as a factory of HIV?

A. RBCs
B. Macrophages
C. WBCs
D. Platelets
Answer» C. WBCs
7.

Why does AIDS patient start suffering from other common infections?

A. The decrease in RBC count
B. Reduction in the number of platelets
C. Low WBC count
D. The decrease in the number of Helper T-lymphocytes
Answer» E.
8.

How does the virus multiplication take place in the human body?

A. The virus enters into macrophages and forms viral DNA
B. Virus destroys WBCs
C. The virus makes its own DNA and gets killed
D. The virus multiplies in CD4 receptors
Answer» B. Virus destroys WBCs
9.

Which organisation in India is helping to sensitize people about AIDS?

A. NACO
B. KVIC
C. IARI
D. ICZN
Answer» B. KVIC
10.

Which structure is depicted in the following figure?

A. Structure of HIV
B. Structure of T4- lymphocytes
C. Structure of RBCs
D. Structure of WBCs
Answer» B. Structure of T4- lymphocytes
11.

AIDS can spread through mosquito bites, hugging or touching the infected individual.

A. True
B. False
Answer» C.
12.

Through which of the following routes, the transmission of AIDS does not take place?

A. Parenteral Route
B. Sexual Route
C. Transplacental Route
D. Faeco-oral Route
Answer» E.
13.

AIDS is characterised by which of the following?

A. Reduction in the number of platelets
B. Very less RBC count
C. Reduction in the number of T4-lymphocytes
D. Very High Blood Pressure
Answer» D. Very High Blood Pressure