Question: 11. What Additional Class Of Zygotic Genes/proteins Determines The Identity Of Embryonic/larval/adult Segments? 12. Describe An Example From Drosophila Embryos Where Reciprocal Morphogen Gradients Are Used To Pattern The Cell Fates In A Defined Region. 13. Give A General Overview Of The Developmental Timing And Spatial Pattern For Expression For The …
Question: 11. What Additional Class Of Zygotic Genes/proteins Determines The Identity Of Embryonic/larval/adult Segments? 12. Describe An Example From Drosophila Embryos Where Reciprocal Morphogen Gradients Are Used To Pattern The Cell Fates In A Defined Region. 13. Give A General Overview Of The Developmental Timing And Spatial Pattern For Expression For The …
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11. What additional class of zygotic genes/proteins determines the Identity of embryonic/larval/adult segments? 12. Describe an example from Drosophila embryos where reciprocal morphogen gradients are used to pattern the cell fates in a defined region. 13. Give a general overview of the developmental timing and spatial pattern for expression for the 5 classes of genes involved in establishing A-P polarity and segmental identity (diagrams may be useful here) Classes of Drosophila Drosophila A-P patterning & segmentation genes: Maternal effect genes Gap genes Pair-rule genes Segment polarity genes-turned on after the cells are made Homeotic genes 14 What is the regulatory “hierarchy” between these classes of genes (who regulates whom)?
