Which of the Choices Correctly Represents the Synthesis of DTTP $\to$

question 27

Multiple Choice

Which of the choices correctly represents the synthesis of dTTP as represented by the following reactions?
(I) dUMP + N⁵,N¹⁰-methylenetetrahydrofolate $\to$ dTMP + dihydrofolate
(II) dTMP + ATP $\to$ dTTP + P_i
(III) dUTP + H₂O $\to$ dUMP + PP_i
(IV) dUTP + N⁵,N¹⁰-methylenetetrahydrofolate $\to$ dTTP + dihydrofolate

• A)I \(\to\) II \(\to\) IV
• B)IV only
• C)III \(\to\) IV \(\to\) I \(\to\) II
• D)III \(\to\) I \(\to\) II
• E)III \(\to\) I

---

Definitions:

Cardiovascular System

The body's heart and blood vessels network that circulates blood to deliver oxygen and nutrients to tissues.

Bladder

A muscular organ in the pelvic area that holds urine from the kidneys before urination.

Reproductive Organs

Body organs involved in reproduction, including ovaries and testes, facilitating the creation of new life.

Abdominopelvic Cavity

A body cavity that consists of the abdominal cavity and the pelvic cavity, housing organs such as the stomach, liver, intestines, and reproductive organs.