Two people (both heterozygotes) are able to taste a chemical substance called PTC. The ability to taste PTC is caused by a dominant allele (T). The inability to taste PTC is caused by a recessive allele (t). What proportion of their children would be expected to have the ability to taste PTC?
a. 3/4
b. 1/2
c. All
d. 1/4
e. 2/3
a
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What are Harris lines?
A. traces of ancient irrigation systems in highland Peru B. late Neolithic plow marks at sites in Great Britain C. geographic boundaries of ancient cultivated plants D. indications of physiological stress caused by famines
If a 12 percent increase in price leads to a 6 percent decrease in the quantity demanded of the good, as a result of the price change, the total revenue for this product will ________.
A) decrease B) not change C) fall by half D) increase
What is the prefix in the word untouchables?
A un B touch C touchable D able E s
A critical factor that makes Northern Indian kinship terminology difficult for Americans is:
a. The use of different terms for kin from the mother's side and father's side of the family. b. The fact that all older males within one's family are called father. c. The fact that women are only rarely allowed to use a kin name when addressing members of her own family. d. The fact that the same individual may be called by as many as three different kin names on different occasions. e. The fact that some people that are much younger than you, must be called father or mother.