Which of the Following Tripeptides Is Formed When Serine Is

question 41

Multiple Choice

Which of the following tripeptides is formed when serine is treated with (Boc) ₂O and threonine is treated with benzyl alcohol first and then reacted in the presence of DCC followed by treatment with aqueous NaOH.The dipeptide is then reacted with an ester of isoleucine in the presence of DCC followed by treatment with trifluoroacetic acid and aqueous NaOH?

• A)Ser-Tyr-Ile
• B)Ser-Thr-Ile
• C)Ile-Ser-Thr
• D)Ile-Ser-Tyr
• E)none of these

---

Definitions:

Galvanic Skin Response

A physiological reaction where the conductivity of the skin changes in response to stress or emotional arousal.

Excitation Gradient

A concept in psycho-physiology referring to the increase in neuronal activity leading up to the initiation of a response.

Acquisition Curve

A graphical representation that shows the rate of learning over time, typically illustrating a rapid increase in knowledge or skill followed by a plateau.

Generalization Gradient

A concept in psychology and behavioral science describing the decrease in response strength with increasing difference from the original conditioned stimulus.