There is significantly more genetic variation between human populations than within them
a. True
b. False
Indicate whether the statement is true or false
False
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Environmental influences appear to contribute to cellular mutations that lead to tumor growth. For example, certain diets lead to higher incidence of colon cancers, and overexposure to sunlight leads to higher incidence of skin cancers
The tissues in closest contact with a carcinogen or mutagen (anything that causes genetic mutations) are obviously the ones most likely to develop tumors. Carcinomas and melanomas account for well over half of all cancers. What type of tissue would you guess the term carcinoma and melanoma is most closely associated with? A) connective B) muscle C) epithelial D) nervous
DNA microarray technology is used to measure the
A. levels of specific proteins expressed by cells. B. levels of specific RNAs expressed by cells. C. genetic complexity of cells of interest. D. DNA content of cells.
Release of cross-bridges depends most directly on
A. calcium ions. B. potassium ions. C. adenosine diphosphate. D. adenosine triphosphate. E. creatine phosphate.
What activates protein kinase C?
a. IP3 b. DAG c. cAMP d. PIP2 e. calcium ions