Watson and Crick are famous for determining
a. the presence of nuclein (DNA) in pus cells.
b. the role of DNA in cells.
c. what chemical components are in DNA.
d. the three-dimensional structure of DNA.
e. the location of DNA in cells.
D
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Fossil evidence from five continents exists for 100 extinct, and one extant, species of ____
a. humans b. birds c. trilobites d. insects e. horses
The soil-forming process that occurs naturally in desert basins and along the coast and is a problem in agricultural areas where irrigation is practiced is
A) calcification. B) gleization. C) laterization. D) salinization.
Population geneticists are interested in the forces that change the ____________________ of genes in a population. Fill in the blank(s) with the appropriate word(s)
Which of the following pairs is MISMATCHED?
A. mumps; parotitis B. rabies; hydrophobia C. measles; Koplik's spots D. parainfluenza virus; croup E. hantavirus; paralysis