Genes contain the essential building instructions for life, guiding cells on which amino acids to assemble in what sequence to produce specific proteins. The human genome codes for about 20,000 such ...
Some experts will tell you that the human eye can see between 30 and 60 frames per second. Some maintain that the human eye may be able to see much more than that although more research is needed.
The skin has many more functions than you might imagine ... In particular, smokers get wrinkles around their mouths and eyes. The eye wrinkles are likely due to squinting as the smoke rises ...
Little wonder we're described as "a sunburnt country". Sunlight has also contributed to variation in human eyes. Humans from high latitudes have less protective pigment in their irises. They also have ...
The problem is that groups of genes in living creatures act collectively to perform biological functions ... organs that share similarities with human eyes—long after their predecessors had ...