Nonfunctional Copies of Normal Genes,which Lack Both Introns and Promoters,and

question 14

Multiple Choice

Nonfunctional copies of normal genes,which lack both introns and promoters,and are important in estimating evolutionary ages of phylogenetic relationships,are ________.

• A) transgenes
• B) retrotransposons
• C) processed retrogenes
• D) processed pseudogenes
• E) duplicated pseudogenes

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Definitions:

Gas Chromatograph

A gas chromatograph is an analytical instrument used to separate, analyze, and identify compounds in a gaseous sample based on their different boiling points.

Boiling Points

The temperature at which a substance transitions from the liquid phase to the gas phase under standard atmospheric pressure.

Retention Time

The time taken for a substance to travel through a chromatography column to the detector, a critical parameter for identifying substances in the mix.

Gas Chromatograph

An analytical instrument that measures the content of various components in a sample by separating and analyzing vapors.