Question: Which of the following radioactive element is generally involved in RIA?
[A].Tritium
Carbon-14
Iodine-125
All of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Biochemistry
An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that
Question: An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that
[A].there was more than one antigen
the antibody was impure
the temperature was too high
there was one antibody and one antigen
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
In animals, blood clots serve the function of
Question: In animals, blood clots serve the function of
[A].consuming invading organisms
helping them match the background coloration of the habitat
stimulating production of killer T lymphocytes
repairing damage to the body wall
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Which of the following produces the antibodies employed in the specific immune response of vertebrates?
Question: Which of the following produces the antibodies employed in the specific immune response of vertebrates?
[A].B lymphocytes
T lymphocytes
Neutrophils
Macrophages
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Which of the following provide specific defense against viruses and bacteria?
Question: Which of the following provide specific defense against viruses and bacteria?
[A].T cells
B cells
Complement
inflammation
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Lack of reaction to our own human leukocyte antigens (HLAs) is known as?
Question: Lack of reaction to our own human leukocyte antigens (HLAs) is known as?
[A].autoimmunity
complement system
clonal selection
tolerance
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
A cell which defends against body cells in which viruses are reproducing is
Question: A cell which defends against body cells in which viruses are reproducing is
[A].Exotoxin
Cytotoxic T cell
Endotoxin
Suppressor T cell
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Which of the following white blood cells act as scavengers when they engulf and digest pathogens?
Question: Which of the following white blood cells act as scavengers when they engulf and digest pathogens?
[A].Macrophages
T cells
B cells
Lymphocytes
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Antibodies bound to an invading microorganism activate the complement system via
Question: Antibodies bound to an invading microorganism activate the complement system via
[A].classical pathway
metabolic pathway
Embden Meyerhof pathway
Entner-Doudoroff pathway
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
In cellular immunity, T lymphocytes are responsible for the recognition and killing of foreign invaders. The cells are
Question: In cellular immunity, T lymphocytes are responsible for the recognition and killing of foreign invaders. The cells are
[A].cytotoxic T lymphocytes (CTL)
killer T cells
both (a) and (b)
none of the above
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.