Which two sexually transmitted diseases (STDs) commonly occur together?
a. HPV infection and chlamydia
b. chlamydia and gonorrhea
c. gonorrhea and syphilis
d. trichomoniasis and genital herpes
e. trichomoniasis and syphilis
ANSWER: b
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All of the following are second messengers, except
A) cyclic adenosine monophosphate. B) inositol trisphosphate. C) diacylglycerol. D) epinephrine. E) calcium ions.
Describe how amniocentesis is used in the prenatal diagnosis of human genetic abnormalities. Then
compare and contrast the benefits and risks associated with amniocentesis and chorionic villus sampling. What will be an ideal response?
How can the principles of industrial ecology be applied to a traditional brewery process?
A. The brewery wastewater can be used for swine production. B. Waste from swine production can be used to grow algae in fish ponds. C. Spent grain can be used for making bread or growing mushrooms. D. Waste from swine production can be used as a biogas alternative energy source. E. All of the above are correct.
Independent assortment refers to which of the following statements?
A) The pole that any one chromosome moves toward is completely independent of the movement of the other 45 chromosomes in humans. B) The position where crossing over occurs is random. C) The sperm that fertilizes the egg is selected at random. D) A maternal chromosome may move toward either pole while the paternal homologue moves toward the other. E) None of the choices is correct.