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Unformatted text preview: + b.  ­  ­  ­  ­ c. +  ­ +  ­ d. +  ­ + + e. + +  ­  ­ Answer: b 20. Which of the following is not an example of allostery? a. Lac repressor with Lactose b. AraC with arabinose c. CAT protein with cAMP d. rho factor with the rho utilization site e. None of the above Answer: d 21. Which of the following is NOT trans ­acting element? a. Lac operator b. Lac repressor c. Ara C d. CAP 6 e. None of the above Answer: a 22. Which of the following is NOT associated with epigenetic silencing? a. Enhancers b. Histone methylation c. Genetic imprinting d. X ­inactivation e. Position effect variegation Answer: a 23. The fetus of a pregnant woman is found to have no Barr bodies. Which of the follo...
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This document was uploaded on 01/18/2014.

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