H2L2 represents ............ molecule :-A Antibody B Antigen C Pathogen D Both (1) and (2)
Question
H2L2 represents ............ molecule :
- A. Antibody
- B. Antigen
- C. Pathogen
- D. Both (1) and (2)
Solution
Answer
H2L2 represents an antibody molecule. In this designation, "H" stands for heavy chains, and "L" stands for light chains of the antibody structure. Antibodies (also known as immunoglobulins) are proteins produced by B cells that help to identify and neutralize pathogens like bacteria and viruses.
- A. Antibody: Correct. H2L2 specifically refers to the structure of an antibody.
- B. Antigen: Incorrect. Antigens are typically foreign substances that provoke an immune response, not defined by H2L2.
- C. Pathogen: Incorrect. Pathogens are organisms that cause disease, while H2L2 describes a component related to the immune response.
- D. Both (1) and (2): Incorrect.
Thus, the correct answer is A. Antibody.
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