Every living organism must have
a. at least one cell.
b. a nucleus.
c. a cell wall.
d. mitochondria.
e. oxygen.
A
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A human heart cell contains chromosomes.
A. 16 B. 4 C. 2 D. 23 E. 46
The rate of eukaryotic transcription after initiation is increased by:
a. upstream promoter elements. b. the order of gene arrangement in operons. c. the action of catabolite activator proteins. d. how fast 5’ caps and 3’ tails can be added to pre-mRNA. e. enhancers.
Which of the following statements is true regarding hand washing?
A) Hand washing should be done frequently by patients. B) Frequent and proper hand washing should be routinely done by patients and by healthcare workers, both prior to and after interaction. C) Hand washing should be done before and after patient interaction. D) Hand washing should be done frequently by healthcare workers
Which of the following are incorrectly paired?
a. heroin?premature births and low birth weight b. thalidomide?babies born without toes c. accutane?associated with malformations of the brain d. cocaine?constricts fetal arteries, which leads to retarded development e. cigarette smoking?an addiction to nicotine