The ____ bones protect the organs and support the weight of the upper body while standing
a. vertebral column
b. pelvic girdle
c. pectoral girdle
d. ribs and sternum
e. femur and tibia
ANSWER: b
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The graph here shows the results of Jacob and Monod's first experiments with betagalactosidase and lactose in E. coli. If beta-galactosidase were unstable in the absence of lactose (one of the hypotheses they tested), what results would you expect to see?
A. the results shown in the graph B. an increase in beta-galactosidase after lactose is removed C. a decrease in beta-galactosidase after lactose is removed D. an initially high level of beta-galactosidase at the beginning of the experiment, with a steady decline over time E. None of these choices are correct.
Which of these processes is least likely to expand the coding capacity of the genome?
A. RNA editing B. alternative splicing C. poly(A) site choice D. RNA capping
In the following list, identify the carbohydrate, the fatty acid, the amino acid, and the polypeptide:
a. +NH3-CHR-COO- b. C6H12O6 c. (methionine)20 d. CH3(CH2)16COOH
A favorite ascomycete for genetic research is
a Rhizopus stolonifer b. Neurospora crassa c. Penicillium chrysogenum d. Saccharomyces cerevisiae e. Candida albicans