The principles of heredity were first established through breeding experiments carried out in ________ by Gregor Mendel
A) the late 1700s
B) the 1950s
C) the 1860s
D) the early 1900s
E) the mid-1600s
C
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The protein produced by S. aureus that interferes with phagocytosis is
A. protein M. B. collagen. C. protein A. D. capsular protein
Which biome has a closed canopy?
a. tundra b. taiga c. tropical rain forest d. desert e. grassland
Which of the following is NOT true about the tempo of evolution?
a) Evolution always occurs gradually, with small changes over long periods of time. b) Rapid evolutionary changes by punctuated equilibrium proceed by a process different from natural selection. c) Scientific evidence now shows that gradualism, as proposed by Darwin, is wrong. d) Gaps in the fossil record mean that some creatures went extinct and then made a comeback. e) None of the above is true concerning the current view of the tempo of evolution.
Chromosomes that are NOT primarily involved in determining sex are known as
a. autosomes b. homologous c. sex chromosomes d. linked