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a scientist isolates two specific mRNAs. one codes for the enzyme fowlase, an en

ID: 15579 • Letter: A

Question

a scientist isolates two specific mRNAs. one codes for the enzyme fowlase, an enzyme that is involved in digestion in chickadees; the other codes for the quail enzyme quailase that is involved in cellular carb metabolism. both mRNAs are placedin test tubes with RER vesicles stripped of their ribosomes, free ribosomes and precursors for protein synthesis. when the protien synthesis reaction is complete, fowlase is found inside the vesicles; quailase is found in liquid position of the test tube outside the vesicles. what can one conclude about the two proteins?

Explanation / Answer

Quailase is synthesized on free ribosomes and is therefore the domestic protein that stays inside the cell; while fowlase is a secretory protein since it was found inside the vesicle.

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