BIOLOGY 172 Lecture Notes - Lecture 38: Reverse Transcriptase, Blastocyst, Green Fluorescent Protein

• School: U of M
• Department: Biology
• Course: BIOLOGY 172
• Professor: Matthew Chapman

Document Summary

The solution to developing countries that lack vitamin a is to provide them with food that contains vitamin a. Once we do that, the rice will turn golden brown. Ggpp can be turned into beta-carotene with enzymes. All of the enzymes are present in the rice. All parts of the rice makes beta-carotene but not the grain. This is because the four enzymes needed to make beta-carotene are turned off and are not expressed. The solution to that was to provide the four blue genes into the grain so that they will not be turned off. We only need to insert two enzymes in place of the four it lacks. These two enzymes are phytoene synthase (plant enzyme) and crti (bacterial enzyme that can substitute for three of the missing enzymes) These genes need to be put in the rice genome. An organism that can take a gene and insert it inside the plant genome is a bacteria.