Tag Archives: genetic material

ENDOGENOUS RETROVIRUS


Endogenous Retrovirus

Retroviruses carry their genetic blueprint in the form of RNA, which they use to synthesize DNA—the reverse of the usual process. This makes it possible for their genetic material to become a permanent part of the genes of an infected cell. An endogenous retrovirus is a retrovirus-like sequence found in an organism’s genome that is thought to constitute the remains of a true retrovirus absorbed through evolution. In humans, endogenous retroviruses are suspected of involvement in what diseases?More… Discuss

 

BARBARA MCCLINTOCK


Barbara McClintock

McClintock was an American geneticist. In the 1940s and 50s, her experiments with variations in the coloration of kernels of maize revealed that genes are not stationary, but can “jump” on the chromosome. She isolated two control elements in genetic material and found not only that they moved, but also that their transposition affected the behavior of neighboring genes. In 1983, she was belatedly awarded a Nobel Prize in Physiology. Why did she stop publishing her findings in the 50s? More… Discuss