Most mobile DNA consists of
A) transposable elements.
B) introns.
C) linear chromosomes.
D) plasmids.
Answer: A
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This material provides a mechanism for the maintenance of normal human skin that prevents drying and also is involved in the production of an acid pH to prevent the colonization of poten-tially pathogenic organisms
a. sweat b. bacterocins c. antibodies d. sebum
Fishing populations to low levels can cause a species to
a. relocate to distant locations. b. migrate out of the area. c. switch their prey items. d. become ecologically extinct. e. increase its reproductive rate.
What type of fruit is a tomato?
A. Dehiscent B. Berry C. Drupe D. Indehiscent E. Pome
Which of the following is not a component of DNA nucleotides?
A) arginine B) a phosphate group C) adenine D) guanine E) deoxyribose