Problemquestion 1 regulator units for genes may be located, Ask an Expert

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Question 1: Regulator units for genes may be located far away on the chromosomes. What are the regulator units called, what is the most common mechanism for turning them off?

Question 2: TSA are antigens expressed in tumor cells that aren't shown in normal cells. Some are fetal antigens, why would that occur?

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Category:- Biology
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