Which of the following mutations will NOT alter the amount of genetic material of a chromosome?
A. duplication
B. inversion
C. simple translocation
D. deficiency
E. inversion and simple translocation
B. inversion
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On the outer surface of the plasma membrane there are marker molecules that identify the cell type. Often these molecules are
A. ATP. B. amino acids. C. nucleotides. D. carbohydrate chains. E. inorganic ions.
In the liver, carbon dioxide and ammonia are combined to form the less toxic waste product ____
a. urea b. water c. creatine d. sulfuric acid e. phosphoric acid
Which of the following thinkers argued that much of human suffering was the result of human populations increasing faster than food supply, an argument that later influenced Charles Darwin's ideas of natural selection?
A) Charles Lyell B) Thomas Malthus C) Godfrey Hardy D) Gregor Mendel
Microorganisms characterized by the absence of a nucleus are called
A) fungi. B) pathogens. C) eukaryotes. D) prokaryotes. E) viruses.