How Does RNAi Silence Specific Genes in Plants

question 4

Multiple Choice

How does RNAi silence specific genes in plants?

• A) RNAi binds to the gene and prevents mRNA from being transcribed.
• B) RNAi blocks mRNA from leaving the nucleus, preventing it from being translated.
• C) RNAi binds to specific mRNA sequences, targeting them for disposal.
• D) RNAi binds to the ribosome blocking mRNA and preventing translation.

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Definitions:

Hydrogen Ions

Positively charged ions (protons) of hydrogen, H+, which play a significant role in acid-base balance and cellular metabolism.

Plasma Membrane

A bi-layer of lipids and proteins that surrounds a cell, controlling the movement of substances in and out of the cell.

Electrons

Negatively charged subatomic particles that orbit the nucleus of an atom.

Electron Transport Chain

A sequence of structures that move electrons from donors to acceptors through oxidation-reduction processes, simultaneously facilitating the movement of hydrogen ions across a membrane.