Which of the following are alternate ways to introduce DNA into a cell (other than viruses)?
A. Direct insertion of the gene into the cell
B. Attachment of the gene to receptors on the cell membrane
C. Attachment of the gene to a liposome
D. All apply.
Answer: D
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The part of the brain that functions as a "master control center" of the endocrine system is the
A. pineal gland. B. cerebral cortex. C. spinal cord. D. hypothalamus. E. adrenal cortex.
According to the rules of medical terminology, hepatitis is defined as "________."
A. liver failure B. inflammation of the liver C. cirrhosis D. blood clotting
During external respiration, gases are exchanged between the:
A. Outside air and the alveoli B. Cytoplasm and the mitochondria C. Blood and body cells D. Alveoli and the blood E. Nasopharynx and the oropharynx
While standing in the anatomical position,
A) front refers to posterior. B) front refers to inferior. C) back refers to anterior. D) back refers to superior. E) back refers to dorsal.