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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
Antigen binding site in an antibody is found between:A. two light chainB. two heavy chainsC. one heavy and one light chainD. either between two light chains or between one heavy and one light chain depending upon the nature of antigen |
| Answer» Correct Answer - C | |
| 702. |
Antigen determinant differs from antigen binding site in aA. LocationB. FunctionC. StructureD. All the above |
| Answer» Correct Answer - D | |
| 703. |
Shape of antibody is likeA. XB. ZC. YD. O |
| Answer» Correct Answer - C | |
| 704. |
The antigen binding site of an antibody is present atA. the constant regionB. the C- terminalC. the variable regionD. between constant and variable region. |
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Answer» Correct Answer - C Antibodies are made up of four polypeptide chains two heavy and two light chains. Light and heavy chains are subdivided into variable and constant regions. The variable portion is used for binding to antigen and a constant portion determines its adherence and diffusivity. |
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| 705. |
An antibody consists ofA. two light peptide chains and two heavy peptide chainsB. two light peptide chains and one heavy peptide chainC. one light peptide chain and one heavy peptide chainD. one light peptide chain and two heavy peptide chains |
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Answer» Correct Answer - A Antibodies are immunoglobulins produced in response to antigenic stimulation. An antibody is made up of four peptide chains. Of the four chains, there are two long chains, called heavy chains and two short chains called light chains. |
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| 706. |
Highly intensified second time response in acquired immunity on the basis of previous memory is called as :- |
| Answer» Correct Answer - Anamnestic response | |
| 707. |
Antibodies are secreted byA. T-lymphocytesB. B-lymphocytesC. both (a) and (b)D. natural killer cell |
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Answer» Correct Answer - B Antibodies are immunoglobulins which are produced in response to antigenic stimulation. Antibodies are produced by B-lymphocytes. Antibodies direct the antibody-mediated immunity. |
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| 708. |
Proteins which are produced by B. lymphocytes in response to pathogen are :- |
| Answer» Correct Answer - Antibodies | |
| 709. |
When our body encounters first time with a pathogen. Then the first time low intensity response is known as :- |
| Answer» Correct Answer - Primary response | |
| 710. |
Which of following components does not participate in innate immunity ?A. NeutrophilsB. MacrophagesC. B-lymphocytesD. Natural killer cells |
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Answer» Correct Answer - C Innate immunity is the type of immunity that is present in the organism by birth. Acquired immunity is the immunity that an individual acquires during life. B-lymphocytes are involved in acquired immunity and produce antibodies. |
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| 711. |
Primary response produced due to first time encounter with a pathogen is ofA. high intensityB. low intensityC. intermediate intensityD. no intensity. |
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Answer» Correct Answer - B Primary immune response is produced by the initial contact of an animal with an antigen. It takes relatively longer time, is of low intensity and declines rapidly. |
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| 712. |
A person has developed interferons in his body. He seems to carry an infection ofA. TetanusB. MalariaC. MeaslesD. Typhoid |
| Answer» Correct Answer - C | |
| 713. |
The first line of defence in the immune system is provided byA. skin and mucous membraneB. inflammatory responseC. the complement systemD. none of these |
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Answer» Correct Answer - A Skin and mucous membrane are the physical barriers that provide the first line of defence or the external defence. These barriers prevent the entry of microorganisms into the body. Outer tough layer of the skin, the stratumm corneum prevents the entry of bacteria and viruses. Mucus secreted by mucous membrane traps the microorganisms and immobilises them. |
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| 714. |
A person has developed interferons in his body. He seems to carry an infection ofA. tetanusB. malariaC. measlesD. typhoid. |
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Answer» Correct Answer - C Interferons are produced in the body in response to viral infection. Measles is a viral disease. |
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| 715. |
Mechanical carrier for amoebic dysentery is :- |
| Answer» Correct Answer - House fly | |
| 716. |
Which of the following statements regarding different barriers of innate immunity is not correct ?A. Acid present in the stomach saliva in the mouth, tears from the eyes prevent the growth of microorganisms and constitude physiological barriers of out body.B. Mucous membrane lining the respiratory, gastriontestinal and urinogenital tracts helps in ttrapping the microbes and costitute physiological barriers of our body.C. Certain types of leucocytes such as polymorphonuclear leucocytes (PMNL- neutrophils ) and lymphocytes such as natural killer cells, constitute cellular barriers of our body.D. Virus- infected cells secrete proteins called interferons which protect non- infected cells from further viral infection and constitute cytokine barriers of our body. |
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Answer» Correct Answer - B Mucous membrane lining the respiratory, gastrointestinal and uriogenital tracts helps in trapping the microbes and constitude physical barriers of our body. |
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| 717. |
Causative agent of a protozoan disease which cause amoebiasis is :- |
| Answer» Correct Answer - Entamoeba histolytica | |
| 718. |
Which one of the following paris is not correctly matched ?A. Dengue - Flavi-ribo virusB. Syphilis - Trichuris trichiuraC. Plague - Yersinia pestisD. Filariiasis - Wuchereria bancrofti |
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Answer» Correct Answer - B Syphilis is caused by Treponema pallidum. |
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| 719. |
Match column I with column II and select he correct option from codes given below. `{:("Column I", "Column II"),("Amoebiasis ", (i) "Treponema pallidum"), ("Diphtheria", (ii) "Houseflies as mechanical carriers"),("Cholera", (iii) "DPT vaccine"),("Syphilis", (iv) "Oral rehydration therapy"):}`A. `{:(A,B,C,D),(i,ii,iii,iv):}`B. `{:(A,B,C,D),(ii, iii, iv, i):}`C. `{:(A,B,C,D),(I,ii,iii, iv):}`D. `{:(A,B,C,D),(ii, iv, I, iii):}` |
| Answer» Correct Answer - B | |
| 720. |
The most common organ involved in extraintestinal amoebiasis isA. LiverB. LungsC. BrainD. Spleen |
| Answer» Correct Answer - A | |
| 721. |
Match column I with column II and select he correct option from codes given below. `{:("Column I", "Column II"),("Amoebiasis ", (i) "Treponema pallidum"), ("Diphtheria", (ii) "Houseflies as mechanical carriers"),("Cholera", (iii) "DPT vaccine"),("Syphilis", (iv) "Oral rehydration therapy"):}`A. A - (ii), B - (iii), C - (iv), D - (i)B. A - (i), B - (ii), C - (iii), D - (iv)C. A - (ii), B - (iv), C - (i), D - (iii)D. A - (ii), B - (i), C - (iii), D - (iv) |
| Answer» Correct Answer - A | |
| 722. |
Identify the icorrect statement from the followingA. B-cells produce antibodyB. Interferons kill virusesC. Response of T-cells is called cell mediated immunityD. Macrophages are the phagocytic cells. |
| Answer» Correct Answer - B | |
| 723. |
Taenia solium attaches it self to the intestinal wall by means of scolex through itsA. strobilaB. hooks and suckers present on scolexC. rostellum aloneD. suckers alone |
| Answer» Correct Answer - B | |
| 724. |
The symtoms of an allergic reaction develop in response toA. InterferonsB. InterleukinsC. HistamineD. Complement |
| Answer» Correct Answer - C | |
| 725. |
Antigenic determinants are recognised byA. AntibodiesB. Receptors over T-cellsC. Receptors over B-CellsD. All the above |
| Answer» Correct Answer - D | |
| 726. |
Adaptive/acquried immunity is found inA. VertebratesB. InvertebratesC. PlantsD. All the above |
| Answer» Correct Answer - A | |
| 727. |
All the following are related to innate immunity exceptA. Anamnestic responseB. InterferonsC. PMNL - neutrophilsD. Monocytes |
| Answer» Correct Answer - A | |
| 728. |
Choose the wrong statement regarding AIDS:A. AIDS is an immunodeficiency disease.B. It is caused by a retrovirus HIV.C. HIV selectively infects and kills B-lymphocytes.D. Retroviruses have RNA genomes that replicate via DNA intermediate. |
| Answer» Correct Answer - C | |
| 729. |
Active immunity development is related toA. natural killar cellsB. memory cellsC. helper T cellsD. suppressor T cells |
| Answer» Correct Answer - B | |
| 730. |
Choose the wrong statement.A. HIV virus has RNA as its gentic material.B. HIV virus replicates in `T_(H)` lymphocytes.C. Antiretroviral drugs are only partially effective for AIDS treatement.D. The time-lag between the infection and appearance of AIDS symptoms may vary from few hours to a week. |
| Answer» Correct Answer - D | |
| 731. |
Ringworms are caused by I. Wuchereria `" "` II. Microsporum III. Haemophilus `" "` EpidermophytonA. I and IIB. II and IIIC. II and IVD. I and IV |
| Answer» Correct Answer - C | |
| 732. |
Antibodies that function in innate immunityA. Mass replicationB. Clonal selectionC. Mass selectionD. Pure line selection |
| Answer» Correct Answer - B | |
| 733. |
Which of the following is not a component of innate immunity?A. AntibodiesB. InterferonsC. Complement proteinsD. Phagocytes |
| Answer» Correct Answer - a | |
| 734. |
The term vaccine and vaccination were coined by (a) Mendel Robert Hoode Pasteur Robert Brown |
| Answer» Correct Answer - C | |
| 735. |
Thymic hypoplasia is a diseases of infancy in which the child is deprived of a thymus. Which of the following is expected to occur in an infant with thymic hypoplasia?A. Onset of respiratory distress and breathing difficultiesB. B-cells fail to mature and are not effectiveC. Cell-mediated immunity is weak or non-existentD. An increase in immunoglobulin (anti-body) levels |
| Answer» Correct Answer - C | |
| 736. |
In which way has the study of biology helped us to control infectious diseases? |
| Answer» Study of biology has helped us to know about the causes of diseases, carriers of diseases (vectors), effect of diseases on different body functions and above all means to control diseases. | |
| 737. |
Western blot test is used for confirmation ofA. FilariaB. AnaemiaC. MalariaD. AIDS |
| Answer» Correct Answer - D | |
| 738. |
In leukaemia there is tremendous increase in the numbers ofA. Red blood corpusclesB. Immature cellsC. White blood corpusclesD. Both white blood cells and immature cells. |
| Answer» Correct Answer - D | |
| 739. |
At which stage of HIV infection does one usually show symtomas of AIDSA. Within 15 days of sexual contact with an infected personB. When the infected retrovirus enters host cells LymphocytesC. When HIV damages large number of helper T-LymphocytesD. When the viral DNA is produced by reverse transcriptase |
| Answer» Correct Answer - C | |
| 740. |
At which stage of HIV infection does one usually show symtomas of AIDSA. when the infecting retrovirus enters host cellsB. when viral DNA is produced by reverse transcriptaseC. when HIV replicates rapidly in helper T-lumphocytes and damages large number of theseD. within 15 days of sexual contact with an in- fected person |
| Answer» Correct Answer - C | |
| 741. |
AIDS virus enters the human body throughA. FoodB. KissingC. WaterD. Blood |
| Answer» Correct Answer - D | |
| 742. |
What causes swelling of the lower limbs in patients suffering from filariasis? |
| Answer» Wuchereria bancrofti, the filarial worm causes filariasis. The major symptom of this disease is highly swelling of organs. It is, therefore, also called elephantiasis. | |
| 743. |
At which stage of HIV infection does one usually show symtomas of AIDSA. When the infecting retrovirus enter host cellsB. When viral DNA is produced by reverse transcriptaseC. When HIV replicates rapidly in helper T-lymphocytes and damages large number of theseD. Within 15 days of sexual contact with an infected person |
| Answer» Correct Answer - C | |
| 744. |
Name the type of cells the AIDS virus enters into after getting in the human body. |
| Answer» Correct Answer - Helper T-cells. | |
| 745. |
Number of these cells decreases progressively during HIV infection leading to immunodeficiency. |
| Answer» Correct Answer - Helper T-lymphocytes | |
| 746. |
Name the group of cells the HIV enters after getting into the human. What happens in these cells and what are these cells subsequently referred to as? Name the next group of cells the HIV attacks from here. |
| Answer» Helper T-cells or T-lymphocytes. | |
| 747. |
Name the type of immunity the colostrum provides to a newborn baby. Write giving an example where this type of immunity should be provided to a person. |
| Answer» Passive immunity. After a dog bite, vaccination is done to prevent is rabies. It is an example of passive immunization. | |
| 748. |
Which one of the following techniques is safest for the detection of cancers ?A. Computed tomography (CT)B. Radiography (X-ray)C. Magnetic resonance imaging (MRI)D. Histopathological studies |
| Answer» Correct Answer - C | |
| 749. |
Which one of the following cannot be used for preparation of vaccination against plague ?A. Heat killed suspension of virulent bacteriaB. Formaline inactivated suspension of virulent bacteriaC. A virulent live bacteriaD. Synthetic capsular polysaccharide material. |
| Answer» Correct Answer - C | |
| 750. |
Which of the following techniques is safest for the detection of cancer ?A. Magnetic resonance imagingB. RadiographyC. Computed tomographyD. Histopathogical study |
| Answer» Correct Answer - A | |