Which Kind of DNA Should Provide the Best Molecular Clock

question 41

Multiple Choice

Which kind of DNA should provide the best molecular clock for determining the evolutionary relatedness of several species whose common ancestor became extinct billions of years ago?

• A) that coding for ribosomal RNA
• B) intronic DNA belonging to a gene whose product performs a crucial function
• C) paralogous DNA that has lost its function (i.e., no longer codes for functional gene product)
• D) mitochondrial DNA
• E) exonic DNA that codes for a noncrucial part of a polypeptide

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Definitions:

White-Collar

Referring to jobs performed in an office or other administrative setting as opposed to manual labor jobs, usually involving professional, clerical, managerial, or administrative work.

Street Crimes

Include arson, burglary, assault, and other illegal acts disproportionately committed by people from lower classes.

White-Collar Crime

Non-violent crime committed by individuals, usually during the course of their occupation, for personal or corporate benefit.

Respectability

The quality of being regarded with honor and esteem by society, often through conforming to its norms and values.