Diploid cells are cells with ______ chromosomes（）
A. two sets of
B. a single set of
C. circular
D. many sets of
E. three sets of
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Which of the following would serve least well as a model for understanding basic mechanisms of inheritance（）
A. humans
B. fruit flies
C. yeast
D. mice
E. zebrafish
The contribution of Gilbert and Sanger to modern genetics was to（）
A. develop a method for sequencing DNA
B. develop the PCR technique
C. discover DNA in the nucleus of cells
D. describe the structure of DNA
E. show that genes were made of DNA
The attachment point on the chromosome for spindle microtubules is the（）
A. centromere
B. telomere
C. origin of replication
D. sister chromatid
E. sister chromatid
Which of the following species is considered a genetic model organism（）
A. the worm, Caenorhabditis elegans
B. the plant, Linaria vulgaris
C. the deer mouse, Peromyscus maniculatus
D. the frog, Hyla chrysoscelis
E. the chimpanzee, Pan troglodytes
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