What characteristic was the key change in the origin of human and human-like species?
a. changes in vision
b. changes in teeth and jaws
c. bipedalism
d. changes in brain size and development
e. behavioral changes
ANSWER: c
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One problem with both BACs and YACs is that genetic regions of these chromosomes cannot be subcloned
Indicate whether the statement is true or false.
You discover an aquatic fungus that makes spores that use flagella to swim. Into which group should
you classify this fungus?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Which of the following statements best explains why there are fewer colonies on plate IV than on plate III?
(A) Plate IV is the positive control. (B) Not all E. coli cells are successfully transformed. (C) The bacteria on plate III did not mutate. (D) The plasmid inhibits E. coli growth.
Which of the examples below are polymorphic traits? Select all that apply.
A. Lactose tolerance and intolerance in humans. B. A population of lilies that contains equal proportions of both blue and white flowering individuals. C. The A, B, and O blood types found in humans. D. Hair loss in malnourished, captive chimpanzees. E. The change from white coat in winter to brown coat in summer in Arctic fox populations.