MicroRNAs Are Small Noncoding RNAs That ____

question 48

Multiple Choice

MicroRNAs are small noncoding RNAs that ____.

• A)enhance gene expression by activating mRNA expression
• B)silence gene expression by binding to mRNA to inhibit translation
• C)modify gene expression by replacing specific nucleotides in mRNA
• D)mediate DNA production in a reverse direction

---

Definitions:

Neural Tube

is an embryonic structure that eventually develops into the brain and spinal cord during prenatal development.

Spina Bifida

A neural tube defect that results in spinal nerves growing outside of the vertebrae, often resulting in paralysis and developmental disability.

Anencephaly

A neural tube defect that results in the failure of all or part of the brain to develop, resulting in death prior to or shortly after birth.

Sciatica

A condition characterized by pain going down the leg from the lower back, often due to irritation of the sciatic nerve.