Organ formation during embryonic development is guided by important genetic processes. These processes help shape how organs develop. Let's break them down:

1. Gene Regulatory Networks:

   • Special proteins called transcription factors are very important. They help control when and how genes are turned on or off during different stages of development. In humans, there are over 1,000 of these transcription factors that help with embryonic development.

2. Cell Signaling Pathways:

   • Pathways like Wnt, Hedgehog, and Notch play a big role in deciding what cells become, how they grow, and how they change. For example, studies show that about 20% of genes that are active during development are linked to these pathways.

These genetic tools work together to make sure that our organs form correctly as we grow.