Why are model organisms used to test hypotheses?
A) The hypotheses are likely to apply only to the model organism.
B) The hypotheses are potentially too dangerous to perform on human subjects.
C) Human subjects have already been tested.
D) The hypotheses have results that are always applicable to humans.
B
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A mysterious sequel to Campylobacter jejuni infections is
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A color-blind man and a woman with normal vision whose father was color blind have a son. Color
blindness, in this case, is caused by an X-linked recessive gene. If only the male offspring are considered, the probability that their son is color-blind is a. 25 percent. b. 50 percent. c. 75 percent. d. 100 percent. e. 0 percent.
Which birth control method avoids intercourse during fertile days?
a. rhythm method b. withdrawal c. vasectomy d. tubal ligation e. abstinence
Which of the following is an incorrect match?
A) Golgi apparatus- protein alteration and packaging B) ribosomes- protein synthesis C) lysosomes- cellular digestion D) mitochondria- production of cellular ATP E) smooth endoplasmic reticulum- storage of water