USMLE Forum Archives - USMLE Step 1 - 20
20
drspleen - 03-14-11 23:59
While investigating a new compound, a researcher discovers that it is a powerful scavenger of orotate compounds. If this compound is administered to a human, synthesis of which nucleotide will be inhibited?
* A. Thymine diphosphate
* B. Cytosine diphosphate
* C. Orotidine monophosphate
* D. Uracil monophosphate
* E. All of the above
drspleen - 03-14-11 23:59
While investigating a new compound, a researcher discovers that it is a powerful scavenger of orotate compounds. If this compound is administered to a human, synthesis of which nucleotide will be inhibited?
* A. Thymine diphosphate
* B. Cytosine diphosphate
* C. Orotidine monophosphate
* D. Uracil monophosphate
* E. All of the above
The correct answer and explanation will be available after you answer.
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Re: 20
babbu5508 - 03-19-11 14:24 My answer is: d.
orotate phosphoribosyltransferase is the enzyme which causes conversion of orotate into uridine monophosphate..
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