While RNA Is Often Single Stranded, Transfer RNA (TRNA)is Usually

question 10

Multiple Choice

While RNA is often single stranded, transfer RNA (tRNA) is usually found with some double stranded structure. Which of the following explains this?

• A)tRNAs contain self-complimentary stem-loop structures
• B)after synthesis, tRNA molecules are hydrolyzed in specific places to allow double stranded structures to form
• C)regions of tRNAs become supercoiled, thus forcing formation of double stranded regions
• D)tRNAs adopt a form much like Z-DNA allowing double stranded regions to form
• E)none of the above

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Definitions:

Subarachnoid Space

The interval between the arachnoid membrane and the pia mater that is filled with cerebrospinal fluid, and surrounds the brain and spinal cord.

Cerebrospinal Fluid

A transparent, colorless fluid present within the brain and spinal cord that serves to protect the brain's cortex by cushioning it, offering essential mechanical and immunological defense within the skull.

Spinal Tap

A medical procedure where a needle is inserted into the lower back to collect cerebrospinal fluid for testing.

Enlargements

Increases in size or volume of an organ or structure, often due to cell growth or accumulation of materials.