Zebrafish Development | Developmental Biology | CSIR DBT JRF 2026 | Lec-39 | IFAS

(Zebrafish Development | Developmental Biology | CSIR DBT JRF 2026 | Lec-39 | IFAS) explained with clear concepts and exam-focused approach. Master zebrafish development for CSIR NET & DBT JRF 2026 with stage-wise PYQs, smart tricks, and problem-solving. 🔥 Join India's Best Life Science Coaching - IFAS Online! 🔥 Exclusive Crash Live Course Batch: Starts on 01 June 2026 🔥 Live Online Batch: Super Emotion Batch 7.6 - Starts on 18 May 2026 🔥 Recorded Online Batch: Revolution Batch 7.6 from Live Batch Completed on 25 April 2026 📞 Need Guidance? Call/WhatsApp: 9172266888 ━━━━━━━━━━━━━━━━━━━━━━━━━ ⏳ Lecture Timeline: [00:00:00] – Introduction to Zebrafish Development | Developmental Biology [00:10:07] – Zebrafish Model Features [00:12:05] – Fate Map: Early Gastrula [00:15:27] – Shield: The Organizer [00:26:03] – Maternal‑Zygotic Transition [00:28:23] – Extra‑embryonic Layers (EVL, Deep Cells, YSL) [00:37:29] – Gastrulation: Epiboly, Involution, Ingression [00:39:35] – Convergence & Extension [00:40:32] – Embryonic Shield Function [00:41:35] – Nodal & BMP Signaling [00:44:20] – Wnt/β‑Catenin Dorsal Axis [00:58:08] – Epiboly & Tail Bud Formation [01:00:24] – Shield Formation & Chordamesoderm [01:02:51] – Shield Equivalence to Dorsal Lip [01:05:32] – Secondary Axis Induction Experiment [01:08:29] – Practice Questions Assigned [01:11:57] – Complete Session (Zebrafish Development | Developmental Biology ) ━━━━━━━━━━━━━━━━━━━━━━━━━ 📖 Topics Covered in This Lecture: • Zebrafish Cleavage & Epiboly • Gastrulation & Axis Formation • Fate Map & Cell Lineage Concepts • Signalling Pathways in Development • CSIR DBT JRF PYQs & Tricks ━━━━━━━━━━━━━━━━━━━━━━━━━ 📚 Lecture Summary: In this session, IFAS Expert Faculty focuses on Zebrafish Development, covering epiboly movements, gastrulation, axis formation, and key signalling cascades. Solve CSIR DBT JRF PYQs with visual memory tricks and concept-based shortcuts. Strengthen your Developmental Biology with this in-depth Zebrafish Development lecture. ━━━━━━━━━━━━━━━━━━━━━━━━━ 🎓 This lecture is highly beneficial for students preparing for: ✅ CSIR NET Life Science ✅ GATE Life Science ✅ GATE Biotechnology ✅ GATE Ecology & Evolutuon ✅ BET (DBT) ✅DHR ICMR (BRET) ✅ TIFR Biology  ✅ BARC Bioscience  ✅ SET / PhD Entrance Exams ━━━━━━━━━━━━━━━━━━━━━━━━━ 🏆 Why IFAS is India’s No. 1 Choice for CSIR NET & GATE Life Science? (Our Results Speak): ✅ CSIR NET Dec 2025: 4000+ Selections (AIR 3, 8, 9, 9...) ✅ CSIR NET June 2025: 4200+ Selections (AIR 1, 2, 6, 10...) ✅ CSIR NET Dec 2024: 4000+ Selections (AIR 5, 6, 7, 8, 9...) ✅ CSIR NET June 2024: 2000+ Selections (AIR 3, 10, 13...) ✅ CSIR NET Dec 2023: 1200+ Selections (AIR 2, 4, 5...) 📄 View IFAS Result Sheet: 👉 https://drive.google.com/file/d/1THh6... ━━━━━━━━━━━━━━━━━━━━━━━━━ 🔗 Important Links: 🌍 Visit our Website: https://ifasonline.com 📞 Contact for Queries: 9172266888 📘 Free Counselling: https://ifasonline.com/csir-net/life-... ━━━━━━━━━━━━━━━━━━━━━━━━━ 🔗 India's Best Online Classes and Books: 🔥CSIR NET Life Science Live & Recorded Course: https://ifasonline.com/csir-net/life-... 🎯 GATE Life Science Recorded Course: https://ifasonline.com/gate/life-scie... 🎯 GATE Biotechnology Recorded Course: https://ifasonline.com/gate/biotechno... 📘CSIR NET Life Science Books: https://ifasonline.com/csir-net/life-... ━━━━━━━━━━━━━━━━━━━━━━━━━ 📲 Download IFAS App: Android: https://play.google.com/store/apps/de... IOS: https://apps.apple.com/us/app/ifas/id... ━━━━━━━━━━━━━━━━━━━━━━━━━ Stay Updated Via Other Social Media: ✔ Telegram: https://t.me/IfasLifeScience ✔ Instagram:   / csir_net_life_science_ifas   #developmentalbiology #zebrafishdevelopment #apoptosissignalingpathway #developmentalbiology #csirnetlifescience #gatelifescience #gatebt #setlifescience