What does the term theory mean to a scientist?

A. A proposed explanation for an observed phenomenon
B. A hypothesis that has been supported by a large number of experiments
C. A hypothesis that has been supported by the evidence of one experiment
D. A guess


Answer: B

Biology & Microbiology

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A. Treponema pallidum B. Mycobacterium tuberculosis C. Staphylococcus aureus D. Mycoplasma pneumoniae

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DNA contains an organism's genetic material, organized into sequences called:

a. genes. b. chromosomes. c. gametes. d. nuclei. e. sperm and egg cells.

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In a population that is in Hardy-Weinberg

equilibrium, the frequency of the recessive homozygous genotype is 0.49. The percentage of the population that is heterozygous is a. 51. b. 49. c. 42. d. 7. e. 3.

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Two genes located on the same chromosome are 

A. homologous. B. homozygous. C. linked. D. autosomes.

Biology & Microbiology