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Fluorescence

Total questions: 25

Worksheet time: 5mins

Name
Class
Date
1.

CD4 cells are generally restricted by

a)

CD-1

b)

MHC-1

c)

MHC-2

d)

Beta-2 Microglobulin

2.

Successful immunisation can be impared by

a)

Maternal Antibodies

b)

Adjuvants

c)

Cytokines

d)

Cloning the vaccine

3.

The classical pathway of complement is primarily activated by:

a)

Microsomal surface

b)

Antibodies

c)

Cytokines

d)

Interleukins

4.

Pattern recognition structures present in cytoplasm of host cells include:

a)

TLR-4

b)

DC-SIGN and Dectin-1

c)

NOD 1/2 and RIG like receptor

d)

TLR-9

5.

Defects in the production room of, or response to Interferon Gamma primarily results in:

a)

Increased susceptibility to intracellular pathogens like mycobacteria

b)

Increased susceptibility to viruses

c)

Autoimmunity

d)

Neutropenia

6.

The lymphocytes antigen receptor Repertoire is mostly generated:

a)

In the periphery following exposure to antigens

b)

Following vaccination

c)

By cutting or splicing V, D or J gene segments

d)

Mutation of tcr and immunoglobulin

7.

Macrophage activation to kill intracellular pathogens is primarily mediated by:

a)

IL-2

b)

IFN- gamma

c)

IL-17

d)

GM-CSF

8.

Cytokines primarily involved in T cell proliferation and development are

a)

IL-2 and IL-5

b)

IL-12 and IL-7

c)

IL-2 and IL-7

d)

IL-4 and IL-5

9.

Granulomas formed in response to infection are:

a)

Enriched in neutrophils

b)

Enriched in activated T cells and macrophages

c)

Mostly produced in response to viral infections

d)

Mostly produced in response to encapsulated bacteria

10.

Adhesion molecules can control leukocyte migration by

a)

Binding to specific antigen

b)

Changing lymphocyte survival

c)

Binding to ligands on vascular endothelium

d)

Agglutinating pathogens in the tissue

11.

Out of various antinuclear antibodies, pathognomonic of SLE is:

a)

Antibody to single-stranded DNA

b)

Antibody to double-stranded DNA

c)

Antibody to histones

d)

Antibody to nucleolar antigen

12.

In cases of renal failure on long-term haemodialysis, there is development of following type of amyloid:

a)

Amyloid light chain (AL)

b)

Amyloid-associated protein (AA)

c)

B amyloid protein (Ab)

d)

Amyloid b2 microglobulin (Ab2m)

13.

Chediak Higashi syndrome is an immunodeficiency disease which occurs due to

a)

T cell Defect

b)

B cell Defect

c)

Both T and B cell Defect

d)

Diminished phagocytic activity

14.

Opsonin Index is calculated by

a)

Incubating fresh citrated blood with bacterial suspension at 37°C for 10 mins.

b)

Incubating fresh salined blood with bacterial suspension at 37°C for 10 mins.

c)

Incubating fresh citrated blood with bacterial suspension at 37°C for 15 mins.

d)

Incubating fresh citrated blood without bacterial suspension at 37°C for 15 mins.

15.

Select the correct option for the given statements for the Standard dose-response in RadioImmunoAssay.

St.A:- Is also Called Calibrating Curve

St.B:- Is done by running reaction with fixed amounts of antibody and antigen

St.C:- Is given by the ratio of bound Antigen to total antigen.

a)

A

b)

B,C

c)

A,B,C

d)

A,C

16.

Identify the pointed microscopic Structure

a)

Lipofuscin Granules

b)

Lysosome

c)

Phagolysosome

d)

Secondary Lysosome

17.

Immunofluorescence staining from a kidney biopsy from a 35 year old patient presenting with proteinuria has been shown. What is the most probable cause?

a)

RPGN

b)

PSGN

c)

Lupus Nephropathy

d)

Good Pasteur Syndrome

18.

A 12 year old boy had a cut in his arm 4 days ago. Now the bleeding has been stopped due to granulation tissue formation. While taking skin biopsy, a part of this tissue was also taken in. The histology is been shown here. What type of collagen tissue will be present here?

a)

Type-1

b)

Type-2

c)

Type-3

d)

Type-4

19.

A worker was working in a factory from the past 20 years, and now presented with pleural thickening and fibrosis. Histopathology is shown. What is the probable diagnosis?

a)

Asbestosis

b)

Cotton fibre

c)

Coal worker Pnemoconiasis

d)

Silicosis

20.

Storage temperature of RBC, Platelet, Fresh Frozen Plasma(FFP) are:

a)

2-6°C, 20-22°C, 30°C

b)

20-26°C, 20-22°C, 30°C

c)

2-6°C, 20-22°C, 3-10°C

d)

2-6°C, 20-32°C, 30°C

21.

Abnormality in elastin can lead to all of the following, except-

a)

Fractures

b)

Aortic aneurysm

c)

Joint Laxity

d)

Subluxation of Lens

22.

Which of the following is true about Blood transfusion and Packed RBCs?

a)

Should be started within 4 hours after receiving from Blood Bank

b)

Should be completed within 4 hours after receiving from Blood Bank

c)

Wait till the patient is stable and then transfuse irrespective of time gap.

d)

Should be completed within 6 hours after receiving from Blood Bank

23.

Which do the following can not be diagnosed without positive ANA?

a)

SLE

b)

Sjogrens Syndrome

c)

Drug Induced Lupus

d)

Scleroderma

24.

Which of the following is not true regarding NETosis?

a)

Causes death of Neutrophils

b)

Chromatin Condensation

c)

Detected in blood of septic patients

d)

Involved in SLE

25.

The Nobel prize of 2018 in Medicine/Physiology was awarded for the discovery of-

a)

Crispr-Cas 9

b)

Negative Immune Regulation

c)

Circadian rhythm

d)

Apoptotic Pathway