IAS (Admin.) Mains Zoology Developmental Biology-Differentiation from Gamete to Neurula Stage Study Material (Page 1 of 5)

Choose Programs:

📹 Video Course 2024 (114 Lectures [55 hrs : 21 mins]): Offline Support

Rs. 290.00 -OR-

1 Month Validity (Multiple Devices)

Preview All LecturesDetails

🎓 Study Material (887 Notes): 2024-2025 Syllabus

Rs. 850.00 -OR-

3 Year Validity (Multiple Devices)

Topic-wise Notes & SampleDetails

🎯 596 Questions (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 1050.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

Introduction to Embryogenesis: Step 1 to 4

Edit
  • Embryogenesis, the first eight weeks of development after fertilization, is an incredibly complicated process.
  • it՚s amazing that in eight weeks we՚re transforming from a single cell to an organism with a multi-level body plan.
  • The circulatory, excretory, and neurologic systems all begin to develop during this stage.
  • Luckily, like with many complex biological concepts, fertilization can be broken down into smaller, simpler ideas.
  • The big idea of embryogenesis is going from a single cell to a …

… (651 more words, 41 figures) …

Subscribe (by clicking here) to view full notes and track progress.

Introduction to Embryogenesis: Step 5 - Making Tubes

Edit

Step 5

  • During gastrulation the three germ layers form; the cell mass is now known as a gastrula

Step 5 A

  • The primitive streak forms

Step 5b

  • The notochord is formed
  • Week 3 of development is the week of gastrulation into germ layers.
  • A germ layer is a layer of cells that will go on to form one of our organizational tubes. Our anatomy can really be boiled down to an inner tube (our digestive tract) , and a series of tubes that wrap around it.

The Three Germ Layers That Will Translate into These Tubes Are the Ectoderm, the Mesoderm, and the Endoderm

Ectoderm

  • Outer, external layer
  • Epidermis (outer l…

… (348 more words, 12 figures) …

Subscribe (by clicking here) to view full notes and track progress.