You've Just Sequenced a New Protein Found in Mice and Observe

question 18

Multiple Choice

You've just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals.What is the significance of this finding?

• A)Cysteine residues are required for the formation of α-helices and β-pleated sheets.
• B)It will be important to include cysteine in the diet of the mice.
• C)Cysteine residues are involved in disulfide bridges that help form tertiary structure.
• D)Cysteine causes bends,or angles,to occur in the tertiary structure of proteins.

---

Definitions:

Chief Justice

The presiding judge in the supreme court of a country or a specific jurisdiction, overseeing the court's administration.

Roger Taney

The fifth Chief Justice of the United States, serving from 1836 until his death in 1864, best known for delivering the majority opinion in Dred Scott v. Sandford (1857), which ruled that African Americans could not be American citizens.

Charles River Bridge v. Warren Bridge

A landmark Supreme Court case in 1837 that dealt with the issue of public vs. private interests and upheld that new projects could proceed even if they harmed existing monopolies.

Interstate Commerce

Interstate commerce involves the purchase, sale, or exchange of commodities, transportation of people, money, or goods, and navigation of waters between different states, regulated by the federal government in the United States.