Which of the Following Statements Best Describes the Characteristics of SiRNA

question 17

Multiple Choice

Which of the following statements best describes the characteristics of siRNA?

• A) a double-stranded RNA, one of whose strands can complement and inactivate a sequence of mRNA
• B) a single-stranded RNA that can, where it has internal complementary base pairs, fold into cloverleaf patterns
• C) a double-stranded RNA that is formed by cleavage of hairpin loops in a larger precursor
• D) a portion of rRNA that allows it to bind to several ribosomal proteins in forming large or small subunits

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Definitions:

Behaviourist Theory

A psychological approach focusing on observable behaviours and external stimuli, while discounting internal states like thoughts and emotions.

Reinforcement

In behavioral psychology, it refers to a stimulus or event that increases the likelihood of the recurrence of a particular behavior.

Punishment

A negative consequence applied following an undesired behavior to decrease the likelihood of that behavior occurring again.

Extinction

The process by which a previously learned behavior diminishes in frequency or disappears as a result of the absence of reinforcement.