How did Staphylococcus aureus develop resistance to vancomycin?
A) Random mutation
B) Conjugation with vancomycin-resistant enterococci (VRE)
C) Transduction from viral particles
D) None of the above
Ans: B) Conjugation with vancomycin-resistant enterococci (VRE)
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The occurrence of an RNA world early in the history of life can never be proven, but experiments with _____ have
shown that it is feasible. a. in vitro evolution b. Darwin’s evolution c. indirected evolution d. chemical evolution e. biological evolution
The human papilloma virus E6 and E7 genes exemplify:
A. tumor suppressor genes B. oncogenes C. protooncogenes D. CDK inhibitors E. cyclin-dependent kinases
Receptor tyrosine kinases (RTKs) are found at high levels on various cancer cells. A protein, Herceptin, has been found to bind to an RTK known as HER2. This information can now be utilized in breast cancer treatment if which of the following is true?
A) If Herceptin is found in the breast lymph nodes of the patient. B) If HER2, administered by injection, is in sufficient concentration. C) If the patient's cancer cells have detectable HER2. D) If the patient's genome codes for the HER2 receptor. E) If the patient's genome codes for the manufacture of Herceptin.
A zygote grows by _______
Fill in the blank(s) with the appropriate word(s).