Which of the Following Statements Is True About $\alpha$ -Helices?
A) the Center of the Helix Is an Open

question 100

Multiple Choice

Which of the following statements is true about $\alpha$ -helices?

• A) The center of the helix is an open channel.
• B) There are about seven amino acids per helical turn.
• C) The amide backbone dipoles line up in one direction.
• D) The helical backbone structure is stabilized by ionic interactions.

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Definitions:

Risk-Free Portfolio

An investment portfolio consisting of assets that have no risk of financial loss, typically associated with government bonds.

Portfolio Beta

A measure of the volatility, or systematic risk, of a portfolio in comparison to the market as a whole, indicating how sensitive the portfolio is to market movements.

Security Market Line

A line that represents the relationship between the risk of an investment and its expected return, used in capital asset pricing model (CAPM) to determine risk-adjusted returns.

Unsystematic Risk

The risk associated with a specific company or industry, also known as "diversifiable risk" or "idiosyncratic risk."