Assume some types of wild rice produce seeds of two different colors—brown and white. If
you cross two plants and end up with three seed colors—brown, tan, and white, you would
correctly assume that this trait __________.
a. exhibits incomplete dominance
b. is polygenic
c. is pleiotropic
d. exhibits codominance
A
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The recessive phenotype of a trait occurs in 16% of a population. What is the frequency of the dominant allele?
A. 0.16 B. 0.36 C. 0.40 D. 0.48 E. 0.60 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the Hardy-Weinberg principle? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The most recent major extinction event ________
a. happened at the end of the Devonian period b. occurred 65 million years ago, when dinosaurs went extinct c. happened at the end of the Triassic period d. is under way now
Cellular slime molds can be distinguished from
plasmodial slime molds on the basis of a. reproductive structures. b. spore formation. c. number of nuclei per cell. d. slime trails. e. food requirements.
Small areas that are home to a large number of threatened species and an exceptional concentration of species found nowhere else on Earth are called
A) biomes. B) movement corridors. C) biodiversity hot spots. D) local populations.