The problem with defining abnormal behavior is that ____
a. too many disorders have similar phenotypes
b. some behaviors are not abnormal, but simply variants
c. biological factors related to abnormal behavior are not known
d. mental illness is multifactorial, and therefore, cannot be defined
e. twin concordance studies mental illness is due mostly to environmental components
b
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A site where a substrate binds to an enzyme
A) Polarity B) Compound C) Denaturation D) Monosaccharides E) Hydrogen bonds F) Element G) Triglycerides H) Amino acids I) Tertiary structure J) Active site
In the absence of predators, what do you think was the main selection factor affecting the average number of spots on male guppies?
a. an infectious disease that influenced pigment deposition in guppy integument b. sexual selection by females for males with high spot numbers c. a completely random process d. none of the above
The human genome contains about __________ genes
a. 25,000 b. 45,000 c. 60,000 d. 80,000 e. 120,000
Triclosan is a broad-spectrum antibacterial agent used in many household products. It is structurally similar to polychlorobiphenylol, a substrate that binds to the active site of the enzyme sulfotransferase
Based on these facts, you can conclude that triclosan most likely A) acts as a noncompetitive inhibitor. B) functions as an enzyme when sulfotransferase is absent. C) is a competitive inhibitor. D) lowers the activation energy of chemical reactions.