With Respect to MicroRNAs, Which, If Any, of the Following

question 34

Multiple Choice

With respect to microRNAs, which, if any, of the following statements, is true?

• A) MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.
• B) Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5' cap and a poly(A) tail.
• C) MicroRNAs are produced by germ-line cells only.
• D) An miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.

---

Definitions:

Deferred Tax Asset

An accounting term used to describe a situation where a company has paid more taxes to the government than it has shown as an expense in its financial statements, which can be used to reduce future tax liability.

Capital Cost Allowance

A tax deduction available in some jurisdictions for tangible and intangible assets, allowing businesses to write off the cost of assets over their useful life.

Straight-Line Depreciation

A method of allocating the cost of a tangible asset over its useful life in a linear fashion, resulting in a constant annual depreciation expense.

Tax Rate

The percentage at which an individual or corporation is taxed by the government, applicable to income, capital gain, or other taxable bases.