Survival of the Sickest: Chapter 6 and Your Inner Fish: Chapter 3

In Chapter 6 of Survival of the Sickest, it discusses "jumping genes." Nobel-prize winning scientist, Barbara McClintock found that corn genes mutated faster when the corn was under stress like drought or extreme heat. This process of mutation is called “jumping genes”, in this process the cell suppresses the proofreading cells so mutation will occur. These mutations were passed on. McClintock also found that mutations under stress happened so fast because the cells were fighting for survival. This flower is similar to the mutation in corn.

 

 

 

In Your Inner Fish, Chapter 3, the picture below is similar to the experiment of Mary Gasseling, where a patch of the tissue responsible for developing digits (ZPA: zone of polarizing activity) were planted on the opposite side of a developing limb. Which led to developing full duplicate set of digits on the opposite side.