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Under minimal conditions, the cell has fewer than 5 copies of enzyme β-galactosidase.(a) True(b) FalseThe question was asked in an online interview.This interesting question is from Gene Expression Control in portion Control of Gene Expression of Cell Biology

Answer»

Right choice is (a) True

Explanation: Under MINIMAL conditions, when GLUCOSE is PRESENT as an energy source there is no need for the CELL to utilize lactose. Under such conditions an AVERAGE cell contains fewer than 5 copies of enzyme β-galactosidase and single copy of associated mRNA.



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