One of the most surprising results of the study is that over half of male marmosets have chimeric sperm. Dr. Ross and her colleagues discovered cases in which the DNA of male marmosets turned up in babies supposedly fathered by their fraternal twins. In other words, the sperm came from one male, but it had the DNA of the male’s brother. A paternity test would show that the baby’s genetic father was actually its uncle.
American settlers played a crucial part in the apple's progress. Since their chief interest was hard cider, they didn't bother much with grafts, planting apples instead from seed. Because of the vagaries of apple genetics, most seedling trees produce inedible fruit, good for little but cider. Yet if you plant enough of them, as Johnny Appleseed set about doing, you're bound to get a few exceptional ones. And that Americans did.
Most of the great American varieties—the Newtown Pippin, Rhode Island Greening, Jonathan, Baldwin and Red Delicious—were chance seedlings found in cider orchards in the 18th and 19th centuries.
« Older Larry Williams is not as famous as many of his con... | There's an app for everything.... Newer »
This thread has been archived and is closed to new comments
posted by you just lost the game at 9:35 PM on September 30