Immune System Numerous antibodies can be prepared, against one antigen, each binds to unique epitopes. How is this antibody diversity generated? By the combination of different heavy and light chains that form the antigen binding site Antibody proteins can physically change their shape to bind different epitopes By rearrangements of the DNA encoding the variable regions of the heavy and light chains Both (a) and (b) By the combination of different heavy and light chains that form the antigen binding site Antibody proteins can physically change their shape to bind different epitopes By rearrangements of the DNA encoding the variable regions of the heavy and light chains Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following proteins would not need localization signal? A cytosolic protein A cell surface protein A protein bound to the endoplasmic reticulum (ER) membrane A nuclear protein A cytosolic protein A cell surface protein A protein bound to the endoplasmic reticulum (ER) membrane A nuclear protein ANSWER DOWNLOAD EXAMIANS APP
Immune System Major Histo Compatibility Complex (MHC) is a collection of genes arrayed on chromosome 6 in man, chromosone 21 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosome 17 in mice chromosome 21 in man, chromosome 6 in mice chromosome 6 in man, chromosone 21 in mice chromosome 17in man, chromosome 6 in mice chromosome 6 in man, chromosome 17 in mice chromosome 21 in man, chromosome 6 in mice ANSWER DOWNLOAD EXAMIANS APP
Immune System Natural killer cells are involved in non-specific killing of virus transformed target cells allograft rejection tumour rejection all of these non-specific killing of virus transformed target cells allograft rejection tumour rejection all of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B cells synthesize antibodies and put them on their cell surface B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B cells synthesize antibodies and put them on their cell surface B cells can undergo class switching and produce a different antibody type B one marrow stem cells migrate to the thymus and develop into B cells B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow ANSWER DOWNLOAD EXAMIANS APP
Immune System Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is actin HLA CD8 interleukin actin HLA CD8 interleukin ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS