The most usual kinship structure in tribal societies is __________
a. bilateral descent
b. a kindred
c. unilineal descent
d. nuclear families
Answer: c
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The Y chromosome
a. is found in both sexes: males have two, females have one. b. influences numerous characteristics in addition to sex determination. c. can be inherited from either parent. d. carries genes that cause the fetus to develop as a male. e. causes a fetus to develop as female if there are two present.
Bipedalism has traditionally been viewed as an adaptation to open grassland or savanna country, although Ardipithecus lived in a humid woodland habitat. Perhaps bipedalism developed in the woodlands but became even more adaptive in a savanna habitat
Indicate whether the statement is true or false.
Heterozygous carriers of Tay-Sachs disease may have had a reproductive advantage due to __________
a. cultural factors b. resistance to other disease(s) c. random selective factors d. acclimatization
Huntington's disease is an example of a __________
a. disease caused by mutation b. polyglutamine expansion disease c. trinucleotide repeat disease d. all of these