A retrovirus makes chicken eggshells blue
When you purchase chicken eggs at the market, they usually have white or brown shells. But some breeds of chicken produce blue or green eggs. The blue color is caused by insertion of a retrovirus into the chicken genome, which activates a gene involved in the production of blue eggs. The Araucana, a chicken breed … Continue reading A retrovirus makes chicken eggshells blue
Copy and paste this URL into your WordPress site to embed
Copy and paste this code into your site to embed