developmental-biology
2 stories tagged "developmental-biology"
Brain & Aging
For Thirty Years the Model Said Blue Cones Drift Out of Sharp Vision. They Were Turning Into Red and Green.
Johns Hopkins researchers grew human retinas in a dish and watched blue cones convert into the red and green cones behind sharp central vision. The three-decade-old migration model was wrong.
Brain & AgingYour Brain Has 170 Billion Cells and No Blueprint. Here's How One Cell Pulls It Off.
For fifty years the textbook said chemical gradients tell brain cells where to go. A new model says cells inherit their address from their family tree instead.