BIO380H5 Lecture Notes - Lecture 12: Gap Gene, Lac Operon, Anterior Segment Of Eyeball
Document Summary
Immunohistochemistry (c : contain both kruppel and hunchback (gap genes, hunchback is an anterior gene, kruppel is in the middle, hunchback has an addition stripe in the posterior. If you have gradients then you want to resolve that into compartments or boundaries, mutual repression between genes and overlapping gradient is a great way to resolve those gradients. 7 stripes: both of these genes have 7 stripes, the textbook helps for this information. Idea that within a piece of dna everything that is needed for the expression of that stripe is already contained. Image is an example of one segment polarity gene, engrailed protein. Slide 16: the third thoracic segment has lost the identity and because its transformed to the second thoracic segment, you get 2 sets of wings. Slide 17: there are legs coming out of where the antennae are supposed to come out of.
