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

Biology & Microbiology

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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.

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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.

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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

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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.

Biology & Microbiology