BIO 448 MOLECULAR BIOLOGY OF DIFFERENTIATION

• Animal development; indirect and direct development, cleavage, morula, blastula, gastrula, early and late embryonic development, placenta, Differential gene expression;

Adult Structures Develop During Organogenesis Ectoderm, endoderm and mesoderm gradually.. rearrange themselves to organs that are characteristic of animal

• In animals, besides the programmed death of some cells (apoptosis), cell movements are also very important in

• produced in one place, diffused and leads to the conclusion that different cells are exposed to different concentrations of morphogenes and thus develop in different ways,

• the number, limits, and polarity of the larval segments are determined by the proteins encoded by the segmentation genes. • maternal effect genes activate the segmentation

• The interactions of the proteins encoded by the gap genes determine the regions of the larval body in Drosophila.. • The hunchback and Krüppel proteins overlap and form a

Differential gene transcription regulates the transcription of nuclear genes into RNA.. • Selective nuclear

 The rifamycin antibiotic binds to the β subunit of RNA polymerase in bacteria, preventing transcription and is ineffective to archaea and eukaryotes..  Amanitin chemical