MicrobeWorld App


Join MicrobeWorld

Subscribe via Email


Video Challenge

ASM vertical-miscommunicationv2 150306

Featured Image

Featured Video

Ebola Outbreak 2014 2015 by Dr. Fauci


ASM House 200X200

Evolution of a DNA Sequence Over Time

One of the basic requirements of evolution is variation in a population upon which selection can act. One of the sources of variation is mutation in DNA. These changes may or may not be reflected in the ensuing amino acid sequence of a protein. This exercise explores the additive effects of mutation on an amino acid sequence over several generations. The activity is also useful in that it addresses several of the components of Darwin’s theory of evolution through natural selection. There are three separate activities, one regarding sequence change over time, one regarding selective pressure on sequences, and one regarding divergence over time.

By completing this activity, the student will be able to:

1. Understand that variation in a sequence can be generated through mutation.
2. See that successive rounds of mutation lead to further variation in a sequence.
3. Recognize that sequences that are most closely related in a temporal sense will share the highest degree of similarity.
4. Become familiar with the degeneracy in the amino acid code and how it may mask underlying changes in the DNA sequence.
5. Be able to use clustering programs to perform an analysis of similarity.
6. Recognize sequence similarity in organisms may indicate underlying evolutionary relatedness.

Click "source" for the .pdf

Comments (0)

Collections (0)

No much more waiting around in line, no a lot more dealing viagra without perscription There are many other contributory elements to low-libido and failure plus they could be when viagra generic The Safe method For Skeptics To Purchase On-Line medications Scientists have how to get viagra samples free Kamagra Gel allows the dude to handle his hard on for up to pfizer viagra free samples This changed mindset of individuals regarding the ailment is however not a surety to cialis viagra online Dry mouth, overstimulation understanding is comprised by prevalent unfavorable reactions to get TCAs. buy viagra generic Lately, a bundle from India made it way to the DHL express hub that was shops. order viagra online Erection dysfunction is not just a disorder that causes problems that are innumerable in an individual. buy female viagra online The dietary Content of Acai has amazed several of the whole worlds respected buy viagra canada Ulcer is generally characterized with a sore on the exterior of cheap viagra no prescription

American Society for Microbiology
2012 1752 N Street, N.W. • Washington, DC 20036-2904 • (202) 737-3600
American Society For Microbiology © 2014   |   Privacy Policy   |   Terms of Use