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Which of the following is true? B-2 cells are activated by long polysaccharide chains Antibodies are...

Which of the following is true?

B-2 cells are activated by long polysaccharide chains

Antibodies are only expressed from one strand of DNA within a single B cell

B cell receptor signalling is not required for B cell development in the bone marrow

Homeostasis is the state where T cells completely eliminate viruses in the body
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Answer #1

True statement is Antibodies are only expressed from one strand of DNA within a single B cell.

An individual B lymphocyte produces a single type of antibody . Its DNA contains a gene for that antibody, which will be on one strand. So that antibody produced from that strand only.

B-2 cells are activated by T-cell dependent or independent pathway. Not by long polysaccharides chain.

B cell receptor is essential to maturation of B cell in the bone marrow.

Homeostasis is a self regulatory process by which the body try to make steady internal,physical and chemical condition.

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