Which Enzyme of the Pyrimidine Synthesis Pathway Is the Most

question 4

Multiple Choice

Which enzyme of the pyrimidine synthesis pathway is the most highly regulated?

• A)carbamoyl phosphate synthetase
• B)aspartate transcarbamoylase
• C)orotate phosphoribosyltransferase
• D)UMP kinase
• E)nucleoside diphosphate kinase

---

Definitions:

Short Phrase

A concise combination of words that often makes up a small part of a sentence or stands alone as a complete thought.

Nativist Approach

The theory that a genetically determined, innate mechanism directs the development of language.

Universal Grammar

A theory in linguistics postulating that the ability to acquire language is innate to humans and that all human languages share a common underlying structure.