The unexpressed regions of split genes are called ________.

A. introns
B. endons
C. codons
D. exons


Answer: A

Biology & Microbiology

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An early sign of plaque formation in coronary arteries is

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________ pulls water through a plant

A) Transpiration B) Photosynthesis C) Pressure flow D) Adhesion

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Which of the following is NOT a mechanism used by bacteria to condense their DNA?

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Four of the five answers listed below are

conditions caused by chromosomal nondisjunction. Select the EXCEPTION.

a. Down syndrome b. Huntington's disease c. Turner syndrome d. Klinefelter's syndrome e. trisomy 18

Biology & Microbiology