Which of the following groups give rise to a disease similar to that caused by Shigella sp.?
A. enterotoxigenic
B. enteroinvasive
C. enteropathogenic
D. enterohemorrhagic
E. All of the choices are correct
B.
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Jermaine and Shikia are healthy parents of three young children. The oldest two, Bethany and Amber, are healthy, and they are six and four, respectively. Their youngest child, Roscoe, was born with Peeling Skin Syndrome two years ago. Roscoe's skin constantly peels, and is red and itchy. If Jermaine and Shikia have another child, the probability that he or she will inherit the skin condition is
A) 1/8. B) 1/4. C) 1/3. D) 2/3.
Which of the following could be a potential consequence of unchecked human population growth?
a. famine in areas that are densely populated b. drought in areas that are sparsely populated c. fewer diseases in densely populated areas d. enhanced resource availability in populated areas
The dense growth of algae in an algal bloom leads to increased oxygen levels in lakes that enhance the habitat for fish
Indicate whether the statement is true or false
The regulation of expression of the C. elegans gene lin14 by lin4 was one of the first known animal examples of
a. a gain-of-function mutation. b. nested genes. c. a riboswitch. d. an antisense gene. e. RNA interference.