Which one of the following is false?!


Question: A. RNA viruses tend to have an unusually high rate of mutation because their RNA genomes cannot be corrected by proofreading.
B. New viral diseases often emerge when a virus infects a new host species.
C. Very few new human diseases have originated in other animals because the genetic differences are too great.
D. Some new viral diseases arise as a result of a mutation of existing viruses.
E. AIDS was around for decades before becoming a widespread epidemic.


Answers: A. RNA viruses tend to have an unusually high rate of mutation because their RNA genomes cannot be corrected by proofreading.
B. New viral diseases often emerge when a virus infects a new host species.
C. Very few new human diseases have originated in other animals because the genetic differences are too great.
D. Some new viral diseases arise as a result of a mutation of existing viruses.
E. AIDS was around for decades before becoming a widespread epidemic.

A.





The consumer health information on answer-health.com is for informational purposes only and is not a substitute for medical advice or treatment for any medical conditions.
The answer content post by the user, if contains the copyright content please contact us, we will immediately remove it.
Copyright © 2007-2011 answer-health.com -   Terms of Use -   Contact us

Health Categories