Mutant forms of which of the following genes have been associated with melanomas and colorectal cancers, respectively?
a) BRAF and CCMD
b) CCMD and APC
c) ZUNI and BRAF
d) BRAF and APC
e) APC and BRAF
Ans: d) BRAF and APC
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The Ug99 strain of wheat stem rust _____
a. has been eradicated worldwide b. has wiped out most of the wheat around the world c. is unable to infect most wheat varieties d. can infect wheat varieties that were previously resistant to other strains e. is only a problem in the United States
If you were to penetrate through the epidermal layer of a root, you would next encounter the ____
a. xylem b. endodermis c. cortex d. phloem e. pith
Endergonic reactions
a. result in products with less energy than the reactants. b. require a net input of energy. c. occur in the breakdown of glucose. d. are used by cells to provide energy for biological reactions. e. break down large molecules into smaller molecules.
Which of the following is an example of a cohort study?
A) Compare lifetime exposure to coal plant emissions between individuals with lung cancer and individuals without lung cancer in the general population. B) Measure lifetime exposure to coal plant emissions and the incidence of lung cancer in a group of individuals living in a small town. C) Question all people in an area about their exposure to coal plant emissions and whether they have any lung diseases. D) Examine the incidence of lung disease in all females over the age of 50 in a city by a coal plant.