Gene Knockdown Is a Procedure Used to Reduce Gene Expression

question 79

Multiple Choice

Gene knockdown is a procedure used to reduce gene expression in cells or organisms so that scientists can investigate gene function. While there are several ways to knock down gene expression, RNAi is one of the most commonly used approaches. Suppose that a research team wants to investigate where a new gene X is expressed in the fruit fly, Drosophila melanogaster. Using RNAi, they obtained the results shown below examining the expression of gene X in four types of tissues.
-Which of the following physiological results would you possibly find in the Drosophila that underwent RNAi against gene X?

• A) The flies would not be able to fly as well because their flight muscles have been affected.
• B) The flies would not be able to see as well because their neurons have been affected.
• C) The flies would not be able to digest food as well because their epithelial tissues have been affected.
• D) The flies would not be able to produce collagen because their connective tissues have been affected.

---

Definitions:

Franchise Agreements

Franchise agreements are legal contracts between a franchisor and franchisee, outlining the terms for the franchisee to operate a franchised business.

Personal Service

Services provided directly to individuals based on personal or professional skills, typically involving direct human interaction.

Discontinuation

The act of ending or stopping something, often referring to the cessation of a business operation, product line, or legal proceeding.

Double Taxation

The imposition of two or more taxes on the same income, asset, or financial transaction, often in different jurisdictions.