If the frequency of expression of a recessive trait in a population is 16 percent, the frequency of the recessive allele is

what percent?
a. 16
b. 25
c. 40
d. 50
e. 67


ANSWER: c

Biology & Microbiology

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A dish of cells is treated with centrinone, a centriole inhibitor.  These cells would no longer be able to ___.  

A.  conduct photosynthesis B.  synthesize proteins C.  make ATP D.  produce lysosomes E.  divide 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 know about centrioles? 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?

Biology & Microbiology

Endemic species tend to have all of the following characteristics EXCEPT ____

a. high specific habitat requirements b. low dispersal ability c. restricted geographic distributions d. high specific dietary requirements e. high charisma to motivate conservationists

Biology & Microbiology

What is the most likely cause of a sampling error?

a. a malfunctioning calculator b. a poorly designed hypothesis c. very few individuals in the control group d. having both an experimental and a control group e. the researcher’s knowledge of which individuals were in the experimental group

Biology & Microbiology

Under the Biological Speces Concept, what criterion is used to assign populations of organisms to the same biological species?

A. Being able to interbreed and produce fertile offspring B. A very similar appearance C. Having 99% of their genes in common D. Responding the the environment in the same way

Biology & Microbiology