Given the Following Information About a Polypeptide

question 13

Multiple Choice

Given the following information about a polypeptide
Hydrolysis of the polypeptide gives the following amino acids: Arg; Gly; Lys; Met(3) ; Phe(2) ;
Ser(2) ; Tyr.
Treatment of the polypeptide with chymotrypsin gives the following fragments: Met-Lys-Ser-Phe; Ser-Gly-Tyr; Met-Arg-Phe; Met.
Treatment of the polypeptide with cyanogen bromide gives the following fragments:
Ser-Gly-Tyr-[lactone]; Arg-Phe-[lactone]; Lys-Ser-Phe-[lactone].
Sanger degradation gives 2,4-DNP-Ser.
What is the primary structure of the original polypeptide?

• A) Ser-Gly-Tyr-Met-Arg-Phe-Met-Lys-Ser-Phe-Met
• B) Lys-Ser-Phe-Met-Ser-Gly-Tyr-Met-Arg-Phe-Met
• C) Met-Lys-Ser-Phe-Met-Arg-Phe-Met-Ser-Gly-Tyr
• D) Ser-Gly-Tyr-Met-Lys-Ser-Phe-Met-Arg-Met-Phe
• E) Ser-Phe-Met-Arg-Phe-Met-Ser-Gly-Tyr-Met-Lys

---

Definitions:

Social Stability

The condition in which a society possesses consistent structure and function, maintaining equilibrium amidst changes and challenges.

Evolutionary Theory

A scientific explanation for the diversity of life on Earth, proposing that species change over time through natural selection and adaptation.

Gender Differences

Variations in characteristics, behaviors, physical development, and roles traditionally associated with being male or female.

Environmental Input

The sensory, social, and physical data from the environment that affects an individual's development and behavior.