Ancient DNA in the genomes of modern humans influences a range of physiological traits.
April 16, 2009|
Researchers have discovered a cellular mechanism that helps nocturnal mammals see in the dark. Mice, cats, deer, lemurs, and other mammals that are active at night remodel the DNA within their eyes to turn photoreceptor cells into light-collecting lenses, according to a linkurl:study;http://www.cell.com/abstract/S0092-8674(09)00137-8 published today (Apr. 16) in__ Cell__. Image: striatic and Animal Photos! In nearly all eukaryotic nuclei, chromatin -- the structural building block of chromosome