If the two parents are each heterozygous for widow's peak and having freckles, what is the chance that any of their children will have the same phenotype?
A) 1/16 B) 1/2 C) 3/16 D) 9/16
Answer: D
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Which of the following bacteria is associated with gastric and duodenal ulcers?
A) Campylobacter pylori B) Helicobacter pylori C) Salmonella enteritidis D) Shigella sonnei
________ causes 15 - 20% of all human deaths in developed countries
a. Heart disease b. Strokes c. Cancer d. Car accidents e. Diabetes
Early in the development of an angiosperm embryo, the embryo becomes dormant. This dormancy occurs
A. after the seed coat is fully formed. B. after apical meristems and the cotyledons are differentiated. C. once the root and shoot have penetrated the seed coat. D. after the seed coat is fully formed and after apical meristems and the cotyledons are differentiated. E. All of these are correct.
Which structure does not represent a mode of vegetative reproduction?
A. stolons B. adventitious plantlets C. runners D. rhizomes E. suckers F. rhizoids