Introduction to Genetic Genealogy Every man has a Y-chromosome that he inherited solely from his father, much as surnames are passed on in Western Culture. The Y-chromosome represents a man’s unbroken paternal lineage. Women do not have a Y-chromosome. Usually, a son receives an exact copy of his father’s Y-chromosome. However, very rarely (once in…
Kategori: Evolution in English
3-D Renderings Bring Ancient Hominids to Life / by Brandon KEIM
For decades, paleoartists have told the story of human evolution through sculpture and drawing. Now their tools have evolved, too. Computers allow a level of detail and control that isn’t possible with other media. Their creations can come closer than ever to bringing our ancestors to life. “What’s driven my work has always been, ‘I…
Stellar Evolution
From Wikipedia, the free encyclopedia/ Life cycle of a Sun-like star. Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years (for the most massive) to trillions of years (for the least…
Creatures from the Black Lagoon: Lessons in the Diversity and Evolution of Eukaryotes / by Scott Dawson
I’ve organized this lecture into several parts, beginning with a history of biological classification of life — especially in the context of microorganisms. I also want to talk about the diversity and lifestyle of microbes (protists in particular) that live without oxygen and why this is relevant to the evolution of life — especially with…
The Neanderthal – modern human connection?
A sixty percent complete, “first draft” of the Neanderthal genome has been prepared by scientists with the Max Planck Institute in Germany and there is evidence there was interbreeding between Neanderthals and modern humans about 80,000 years ago in the Levant. This announcement appeared in the journal Science on May 8 and has had a mixed…