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Which of the following immunoglobulins can form a pentameric structure?

A

IgE

B

IgG

C

IgA

D

IgM

Correct Answer: IgM

IgM is the only immunoglobulin/antibody which is capable of forming a pentameric structure. It has to undergo some conformational changes when involved in any reaction.

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: IgM is found in serum as a pentameric protein consisting of five IgM monomers.
Reason: The pentameric form of IgM is due to cross linking of IgM monomers via peptide bond.

A

Both (A) and (R) are true and (R) is the correct reason for (A)

B

Both (A) and (R) are true but (R) is not the correct reason for (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Name the class of immunoglobulin which has a pentameric structure?

A

IgE

B

IgG

C

IgA

D

IgM

The band structure in an n-type semiconductor is

A

I

B

II

C

III

D

IV

Which of the following is correct about different structure of sales force?
1. In product structure, the sales personnel are working closely in association with Rand D team.
2. In market structure, company designates an independent sales force for each market segment.
3. In territorial structure, each sales representative is assigned a particular geographical area.
Select the correct answer

A

Both 1 and 2

B

Both 2 and 3

C

Both 1 and 3

D

All of the above

Which of the following immunoglobulins is also called secretory immunoglobulin?

A

IgG

B

IgA

C

IgM

D

IgE

Which of the following is obtained by fusing the sequences coding for the variable region of immunoglobulins to proteins of phage coat?

A

Antigen

B

Monoclonal antibody

C

Monoclonal phage

D

Antibody phage display

Which of the following is not a class of immunoglobulins?

A

IgA

B

IgD

C

IgE

D

IgB

The following statements Immunoglobulins are true

A

Majority Immunoglobulinâs Are ï§ Globulin

B

Differentiated by heavy chain

C

IgE responsible for atopic hypersensitivity

D

lgA cross the Placenta

E

lgE is found in wound infection

Which of these immunoglobulins is present in external secretion?

A

IgG

B

IgM

C

IgA

D

IgE

Statement : According to the officials, paucity of funds with the organisation has led to the pathetic condition of this brilliant architectural structure.

Courses of Action :
I. A new architectural structure for the building should be designed.
II. The reasons for the poor condition of the structure should be found out.
III. Grant should be given to improve the condition of the structure.

A

Only I follows

B

Only II follows

C

Only III follows

D

Only II and III follow

E

Only I and III follow