In Mendel's experiments with a single trait, the trait that disappeared in the first generation and reappeared in the next generation is called the
A. homozygous trait
B. dominant trait
C. recessive trait
D. heterozygous trait
Answer: C. recessive trait
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Replication of DNA is
A. conservative. B. redundant. C. dispersive. D. semiconservative. E. semidispersive.
The perianth of a flower consists of
A. the pistil and stamens. B. the petals and sepals. C. the pedicel and receptacle. D. the anthers and stigma. E. the style and ovary.
Which statement about the phosphorus cycle is true?
a. The natural weathering of rocks sends phosphate into lakes and oceans. b. Phosphate from geothermal vents causes dead zones in lakes. c. Phosphate enters the oceans primarily through precipitation. d. The average phosphate ion resides in the ocean for less than 500 years.
Where is the epiglottis located?
a. above the pharynx b. below the pharynx c. below the larynx d. below the esophagus e. in the middle of the pharynx