Germ Cell Development and Gene Expression Study Guide PDF
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This study guide covers germ cell development, cleavage patterns, fertilization processes in sea urchins and mice, gametogenesis, and gene expression in embryos. It summarizes key concepts such as chromatin regulation, transcriptional control, as well as memorization facts, making it a good resource for biology students and learners.
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**Germ Cell Development, Cleavage, and Fertilization** ====================================================== **🥚 Primordial Germ Cell Development** -------------------------------------- ### **PGC Origin and Migration:** - - - - - - - - ### **PGC Differentiation:** - - -...
**Germ Cell Development, Cleavage, and Fertilization** ====================================================== **🥚 Primordial Germ Cell Development** -------------------------------------- ### **PGC Origin and Migration:** - - - - - - - - ### **PGC Differentiation:** - - - - - - - - **🥚 Cleavage Patterns** ----------------------- ### **Types of Cleavage:** - - - - - - - - ### **Cleavage Patterns:** - - - - - - ### **Factors Influencing Cleavage:** - - - - **🐠 Fertilization: Sea Urchin vs. Mouse** ----------------------------------------- ### **Sea Urchin Fertilization:** - - - - - - - - ### **Mouse Fertilization:** - - - - - - - - ### **Comparison Table:** Feature Sea Urchin Mouse Sperm Attraction Chemotaxis (Resact) Thermotaxis, other chemoattractants Egg Coat Jelly layer, vitelline envelope Cumulus cells, zona pellucida Sperm Binding Bindin ZP3, SED1 Polyspermy Block Fast block (membrane potential), slow block (cortical reaction) Slow block (zona pellucida modification) Egg Activation Ca2+ increase, pH increase Ca2+ increase, other signaling events **🧬 Gametogenesis** ------------------- ### **Spermatogenesis:** - - - - - - - - - - - ### **Oogenesis:** - - - - - - - - - - ### **Sexual Dimorphism in Meiosis:** - - **Facts to Memorize:** ---------------------- 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. **Study Guide: Gene Expression in Embryos** =========================================== **I. Genomic Equivalence & Nuclear Transplantation** ---------------------------------------------------- - - - - - - - - - **II. Differential Gene Expression** ------------------------------------ - - - - - - - - - - - - **III. Mechanisms of Differential Gene Expression** --------------------------------------------------- ### **1. Chromatin & Epigenetic Regulation** - - - - ### **2. Alternative Splicing** - ### **3. Transcriptional Control** - - - - - **IV. Applications of Transcription Factors in Regenerative Medicine** ---------------------------------------------------------------------- - - - - -
