You Are Examining a Cell Line in Which Activation of the Rho

question 32

Multiple Choice

You are examining a cell line in which activation of the Rho family member Rac promotes lamellipodia formation.Which of the following statements is most likely to be TRUE?

• A)Cells carrying a Rac mutation that makes Rac act as if it is always bound to GTP will polymerize more unbranched actin filaments than normal cells.
• B)Cells carrying a Rac mutation that makes Rac unable to exchange GDP for GTP will polymerize more unbranched actin filaments than normal cells.
• C)Cells carrying a Rac mutation that makes Rac act as if it is always bound to GTP will polymerize more branched actin filaments than normal cells.
• D)Cells carrying a Rac mutation that makes Rac unable to exchange GDP for GTP will polymerize more branched actin filaments than normal cells.

Determine the degrees of freedom for t-tests in matched pairs experimental designs.

Estimate parameters with confidence intervals in applied contexts.

Recognize when to use the student t-distribution for hypothesis testing in matched pairs experiments.

Distinguish between matched pairs and independent samples.

---

Definitions:

Long-Term Investments

Assets that a company intends to hold for more than one year, such as stocks, bonds, or real estate.

Statement of Cash Flows

A financial report detailing the impact of variations in balance sheet accounts and income on cash and cash equivalents.

Direct Method

An accounting method used in the cash flow statement to show the specific sources of operating cash receipts and payments, contrasting with the indirect method.

Investing Activities

Transactions involving the purchase and sale of long-term assets and investments, a component of a company's cash flow statement.