MCQ Collection
MDCAT Biology MCQs
Practice MDCAT Biology questions with answers and explanations.
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Correct Answer: B. Produce antibody responses and memory B cells
Explanation:
Activated B cells can become plasma cells.
Plasma cells secrete antibodies.
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Correct Answer: C. A viral genome integrates into or persists with host DNA before activation
Explanation:
The viral genome may be copied with the host chromosome.
It can later enter the lytic cycle.
Choose an option to check your answer.
Correct Answer: C. Produce antibody responses and memory B cells
Explanation:
Activated B cells can become plasma cells.
Plasma cells secrete antibodies.
Choose an option to check your answer.
Correct Answer: D. A viral genome integrates into or persists with host DNA before activation
Explanation:
The viral genome may be copied with the host chromosome.
It can later enter the lytic cycle.
Choose an option to check your answer.
Correct Answer: D. Produce antibody responses and memory B cells
Explanation:
Activated B cells can become plasma cells.
Plasma cells secrete antibodies.
Choose an option to check your answer.
Correct Answer: A. A noncellular infectious particle requiring a host cell to reproduce
Explanation:
Viruses contain genetic material inside a protein coat.
Some also possess a lipid envelope.
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Correct Answer: A. A viral genome integrates into or persists with host DNA before activation
Explanation:
The viral genome may be copied with the host chromosome.
It can later enter the lytic cycle.
Choose an option to check your answer.
Correct Answer: A. Kill infected or abnormal host cells
Explanation:
Cytotoxic T cells recognize specific antigens on cell surfaces.
They induce target-cell death.
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Correct Answer: B. Pituitary gland
Explanation:
The pituitary releases hormones regulating several other glands.
It is itself controlled by the hypothalamus.
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Correct Answer: B. A location where two or more bones meet
Explanation:
Joints may permit movement or provide stability.
Their structure varies with function.
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Correct Answer: C. Pituitary gland
Explanation:
The pituitary releases hormones regulating several other glands.
It is itself controlled by the hypothalamus.
Choose an option to check your answer.
Correct Answer: C. A location where two or more bones meet
Explanation:
Joints may permit movement or provide stability.
Their structure varies with function.
