Which of the following would be an effective approach to a new cancer therapy?
A. finding a way to stabilize p53 specifically in tumor cells
B. preventing nucleotide synthesis in tumor cells
C. inactivating the HER2 receptor on tumor cells
D. inhibiting growth of new blood vessels with endostatin
E. All of the above would help to fight cancer.
Ans: E. All of the above would help to fight cancer.
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The perceived flavor of food depends on both sense of taste and smell. The sensory receptors of olfaction are _________________ and those of taste buds are ______________
A. chemoreceptors; thermoreceptors B. mechanoreceptors; chemoreceptors C. nociceptors; thermoreceptors D. chemoreceptors; also chemoreceptors
Why can’t you give type A blood to a type B patient?
What will be an ideal response?
Which of the following does not contribute to prokaryotic genetic variability?
a. mutation b. binary fission c. gene transfer by conjugation d. gene transfer by transduction e. gene transfer by transformation
The bicoid gene product is normally localized to the anterior end of the embryo. If large amounts of the product were injected into the posterior end as well, which of the following would occur?
A) The embryo would grow extra wings and legs. B) The embryo would probably show no anterior development and die. C) Anterior structures would form in both ends of the embryo. D) The embryo would develop normally.