Biology Practice Problems Eukaryotic Gene Regulation Practice Problems Solution: In humans, typically only infants produce the enzy...

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Solution: In humans, typically only infants produce the enzyme lactase to break down lactose. Some adults have changes in _____ that allow transcription factors to bind and turn on expression of the lactase gene into adulthood.  a. Exons b. RNA polymerase c. Enhancers d. mRNA e. Codons

Problem

In humans, typically only infants produce the enzyme lactase to break down lactose. Some adults have changes in _____ that allow transcription factors to bind and turn on expression of the lactase gene into adulthood. 

a. Exons

b. RNA polymerase

c. Enhancers

d. mRNA

e. Codons