Albinism, lack of pigmentation in humans, results from an autosomal recessive gene. Two parents with normal pigmentation have an albino child. What is the probability that their next child will be a wild type girl?
A) 1/4 B) 0% C) 1/2 D) 3/4 E) 3/8
Answer: E
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Alkaloid drugs include
_____ LSD. _____ morphine. _____ caffeine. _____ nicotine. _____ THC.
Formation of a tetraploid plant from two different diploid parental species of plants is an example of speciation.
A. parapatric B. prezygotic C. allopatric D. postzygotic E. sympatric
Select the compound that contains the most energy:a
AMP b. ADP c. ATP d. Pi e. AMP, ADP, ATP and Pi all contain equal amounts of energy.
Conifers do not have flowers to attract pollinators. Instead, fertilization occurs
A) as the sperm and egg unite inside the woody cone. B) when the endosperm takes the place of the male gametes. C) via wind pollination. D) when birds transfer pollen in their droppings after eating the pine seeds. E) when insects coated with pollen are trapped in the sticky resin.