Complete the Following Pathway of the Degradation of UMP $\rightarrow$ Uridine $\rightarrow$

question 1

Multiple Choice

Complete the following pathway of the degradation of UMP. UMP $\rightarrow$ Uridine $\rightarrow$ __________ $\rightarrow$ Dihydrouracil $\rightarrow$ NH₄⁺ + HCO₃- +
$\beta$ -alanine

• A) uracil; N-carbamoyl-\(\beta\)-aminoisobutyrate
• B) N-carbamoyl-uracil; \(\beta\)-alanine CoA
• C) uracil; N-carbamoyl-\(\beta\)-alanine
• D) orotate; uracil

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Definitions:

Operant Conditioning

A method of teaching in which behavior is changed by the use of incentives or disciplinary actions.

Classical Conditioning

An instructional approach where repetitively linking two stimuli causes a reaction, at first prompted by the second stimulus, to be elicited by the first stimulus over time.

Imprinting

A form of learning occurring at a particular life stage that is rapid and apparently independent of the outcomes of behavior.

Operant Conditioning

A learning process by which the strength of a behavior is modified by reinforcement or punishment.