BCHS 3304 Exam 2 Review Questions and CORRECT Answers

BCHS 3304 Exam 2 Review Questions and
CORRECT Answers
The primary sequence of the protein is the:

A. Amino acid code

B. Helices and sheets

C. Protein structure

D. Protein Complex

A. Amino acid code

Which amino acid is the least common?

A. Met

B. Phe

C. Ser

D. Val

A. Met

Two enzymes were used to cleave the fragment and the pieces generated were TS, ACGTY

and KANRVW or ANR, VWTS and ACGTYK. What is the starting fragment?

A. ACGTYKVWTSPNR

B. ACGTYKANRVWTS

C. KANRVWACGTYTS

D. TSACGTYKANRVW

B. ACGTYKANRVWTS

, Which proteases were used to generate the previous fragments?

A. Chymotrypsin and pepsin

B. Thermolysin and Pepsin

C. Trypsin and Chymotrypsin

D. Trypsin and Endopeptidase V8

C. Trypsin and Chymotrypsin

Can you cleave a protein with Trypsin and identify the protein if previously known?

True/False

True

Given the genetic code and the number of known proteins, how many amino acids must

you sequence from the N-terminal to identify a protein?

A. 1

B. 10

C. 100

D. The whole protein

B. 10

Given the following Trypsin fragments: YR, QMK, FAMK, and GMDIK and the CNBR

fragments of K, KFAM, YRGM, AND DIKQM, what is the starting fragment?

A. FAMKQMKYRGMDIK

B. KFAMYRGMDKQMK

C. GMDIKFAMKYRQMK

D. YRGMDIKQMKFAMK