Which procedure is most useful in quantifying the active transcription of botulism toxin genes in a can of food that is contaminated?
A. DNA hybridization
B. End-point PCR
C. Real-time PCR
D. Southern blot
Answer: C
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The hormones epinephrine and norepinephrine constitute the "alarm" response of the body to stress. What secretes these hormones?
A. pancreas B. thyroid gland C. adrenal medulla D. pineal gland E. anterior pituitary gland
Water surface tension is caused by __________ bonds. Fill in the blank(s) with the appropriate word(s)
During the process of ________, water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (it moves along the water concentration gradient).
a. osmosis c. facilitated diffusion b. simple diffusion d. pinocytosis
Fill in the blanks to complete the following statements. ?
___________ are tiny hair-like projections that help expel foreign particles from the respiratory tract.? Fill in the blank(s) with correct word