Mobile bits of DNA that can jump from one location on a chromosome to another location and do not code for a protein are called
A. transposons.
B. exons.
C. introns.
D. pseudogenes.
E. simple sequence repeats.
Answer: A
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How do mammalian and nonmammalian adrenal glands differ?
a. they have totally different functions b. they have opposite effect on target tissues c. the mammalian glands consists of two distinct regions while the nonmammalian glands consist of separate glands d. the mammalian glands are antagonistic while the nonmammalian glands work in concert e. the mammalian glands are the same size while the nonmammalian glands are different sizes
Which of the following would NOT be found inside a Haversian (central) canal?
a. bone cell b. blood capillary c. nerve d. nutrients e. wastes
Which species is most likely to be found in sewage treatment plants and in the guts of cattle?
A) species A B) species B C) species C D) species D
A Legionella pneumophila
A. requires special lab growth media. B. often lives in close associations with amebas. C. causes fever, cough, and diarrhea. D. causes a severe pneumonia. E. All of the choices are correct