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Biology-Related Homework Help Genetics and Developmental Biology Topic started by: ppk on Dec 27, 2010



Title: Drosophila patterning
Post by: ppk on Dec 27, 2010
In experiments on Drosophila patterning, you treat fertilized eggs with a drug that completely blocks RNA polymerase II, which is required for all mRNA synthesis.

Explain briefly if and how you would expect this treatment to affect the process of initial anterior-posterior patterning of the embryo.


Title: Re: Drosophila patterning
Post by: bio_man on Dec 27, 2010
:thi: probably not much. The primary genes required for patterning are maternally transcribed: the egg polarity genes bicoid (anterior) and nanos (posterior), and the gap genes hunchback and caudal.  Both of the egg polarity genes affect translation of the gap genes, but the lack of RNA pol II would not affect translation.