“Housekeeping genes” in bacteria are commonly expressed constitutively, but not all of these genes are expressed at the same level (the same number of molecules per cell).  The primary mechanism responsible for variations in the level of constitutive enzymes from different genes is that:

TLS Online TPP Program

#Question id: 24557

#Unit 4. Cell Communication and Cell Signaling

Patient s suffering from  diphtheria are given antiserum for therapy, this process of immunization is defined as ;

TLS Online TPP Program

#Question id: 24558

#Unit 4. Cell Communication and Cell Signaling

Spreading venom into the body of patient by snake biting, give antiserum of the patient  for therapy, this process of immunization defined as ;

TLS Online TPP Program

#Question id: 24559

#Unit 4. Cell Communication and Cell Signaling

How many gene segments are exist at heavy and the light chain loci?

TLS Online TPP Program

#Question id: 24560

#Unit 4. Cell Communication and Cell Signaling

Junctional diversity in VDJ recombination during gene rearrangement cause by the addition of,

TLS Online TPP Program

#Question id: 24561

#Unit 4. Cell Communication and Cell Signaling

Complement components can be classified into seven functional categories, representing the Proteins Involved in the Complement System in given table;

TLS Online TPP Program

#Question id: 24562

#Unit 4. Cell Communication and Cell Signaling

Major pathway of complement activation is involved such as

I. Classical pathway

II. Lectin pathway

III. Alternative pathway

These pathway involved

a. proceeds through the activation of a C3 convertase composed of C4b and C2a

b. Involved spontaneous hydrolysis or pathogenic surface

c. part of the adaptive immune response since it begins with the formation of antigen-antibody complexes.

d. Lectin proteins that recognize specific carbohydrate components primarily found on microbial surfaces—PAMP