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08:41Nuclei from almost any source may be injected into Xenopus oocytes. Studies have shown that these nuclei remain active in transcription and translation. How can such an experimental system be useful in developmental genetic studies?
In the discussion, we have focused on large-scale as well as the inter- and intracellular events that take place during embryogenesis and the formation of adult structures. In particular, we discussed how the adult body plan is laid down by a cascade of gene expression, and the role of cell–cell communication in development. Based on your knowledge of these topics, answer several fundamental questions:
How did we learn about the levels of gene regulation involved in vulval development in C. elegans?
Distinguish between the syncytial blastoderm stage and the cellular blastoderm stage in Drosophila embryogenesis.
Write a short essay based on the concepts related to stages of development that outlines the role of differential transcription, gene control of cell fate, and the role of signaling systems in development.
What are maternal-effect genes?
In the discussion, we have focused on large-scale as well as the inter- and intracellular events that take place during embryogenesis and the formation of adult structures. In particular, we discussed how the adult body plan is laid down by a cascade of gene expression, and the role of cell–cell communication in development. Based on your knowledge of these topics, answer several fundamental questions:
How do we know that eye formation in all animals is controlled by a binary switch gene?
