In addition to several other factors, the overall risks of environmental chemicals depend on genetically determined variations in the ____ involved in transport, metabolism, and excretion of these chemicals
a. proteins
b. body's oxygen levels
c. body's pH
d. ribosomes
e. disaccharides
a
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The natural philosophy of Aristotle and his colleagues was
(a) mechanistic. (b) vitalistic. (c) a belief in absolute truth. (d) a and c.
Which of the following is TRUE of cell cleavage?
A. It involves consecutive cycles of cell division without cell growth. B. It forms a blastula. C. It is a rather slow event of embryonic development. D. It involves consecutive cycles of cell division without cell growth and forms a blastula. E. It is a rather slow event of embryonic development involving consecutive cycles of cell division.
It is thought that half or more cancers have a mutated or missing ____
a. pre-oncogenes b. haploid genes c. post-oncogenes d. p53 gene e. BRCA1 gene
Which is true about the FTO gene?
A) If you carry it, you will be obese. B) If you carry it, you will have a high metabolism. C) It can be turned off with a diet high in B vitamins. D) It can be turned off with a diet higher in fat.