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Hace 4 días · Hypospadias occurs when the urinary opening (urethra) is located below the usual position on the tip of the penis. It is one of the more frequent and visible genital variations. Hypospadias is the most common birth difference in children with XY chromosomes, seen in 1 out of 300 live births. Intersex Sports Athletes.
Hace 5 días · The UK has become the first country to approve legislation allowing the creation of babies with genetic material from three people. Listen to Neil and Harry’s conversation and learn some related...
Hace 4 días · At 3.2 million years old, some thought her species, Australopithecus afarensis, was close to the time when the ancestor of humans was thought to have split from the ancestor of chimpanzees. But in the past 50 years, discoveries of hominin contemporaries of Lucy—as well as some even older —have pushed that split millions of years deeper in time, and challenged her position as the mother of ...
Hace 2 días · History. Although the possibility of cloning humans had been the subject of speculation for much of the 20th century, scientists and policymakers began to take the prospect seriously in 1969. J. B. S. Haldane was the first to introduce the idea of human cloning, for which he used the terms "clone" and "cloning", which had been used in agriculture since the early 20th century.
Hace 1 día · The hominoids are descendants of a common ancestor.. Human evolution is the evolutionary process within the history of primates that led to the emergence of Homo sapiens as a distinct species of the hominid family that includes all the great apes. This process involved the gradual development of traits such as human bipedalism, dexterity, and complex language, as well as interbreeding with ...
Hace 4 días · Mammals are the best model organisms for humans. Livestock is modified with the intention of improving economically important traits such as growth rate, quality of meat, milk composition, disease resistance, and survival. Genetically modified fish are used for scientific research, as pets, and as a food source.
Hace 6 días · Neanderthal–human baby-making was recent — and brief. Michael Eisenstein in Nature: Some 60,000 years ago, Neanderthals in western Eurasia acquired strange new neighbours: a wave of Homo sapiens migrants making their way out of Africa, en route to future global dominance. Now, a study 1 of hundreds of ancient and modern genomes has ...
