Word: sperm
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...class I seemed to float from one lecture toanother, toughing out the papers and the labs.Still, the wisdom and enthusiasm of the professorswas astounding. I took E.O. Wilson's course onevolutionary biology. "you know," he said during alecture on reproduction, "each ejaculationproduces a hundred million or so sperm. you arethe product of a sperm that beat out millions ofothers--kind of like a genetic megabuck winner...
...nature intended, the sheer number of pollen grains -- the botanical bearers of sperm -- ensured that at least some would reach and adhere to their natural goal: the stigma, a moist and sticky receptor of the female organ of the flower. That would start a fertilization process eventually resulting in seed and the propagation of the species. As a result of one of nature's oversights, however, many of the pollen grains reached another moist and sticky target first: a human eye or the mucous membranes of a nose or bronchial tube, where they set off a chain of events with...
...some Republican affectation but an ideal to strive for. Coming into the world with one parent is a handicap, no matter how mature and moneyed the mother may be. Just because fatherhood can be reduced to 20 seconds, or dispensed with altogether by tapping into Nobel-prizewinner sperm banks, does not mean it should be. Imagine if men decided that motherhood was equally expendable. Sated with their corner offices and home gyms, guys of a certain age could go around paying women to have babies for them. The howl of feminists over such selfish, macho pigs could tie up talk...
Absent a motive, murder weapon or witness, the prosecution's case rested on three pieces of evidence. A forensic test demonstrated that one of two types of sperm found on the victim -- the other sperm, the prosecution argued, was that of her husband -- belonged to someone who was a blood type B secretor, meaning that the blood type can be determined by samples of any bodily fluid. Coleman matched the description -- but since roughly 10% of Grundy's population has type B blood, it is likely that others in the town fit the bill. The prosecution also produced brown hairs...
Scientists may be one step closer to unravelling the complex path of the human embryo's development form the joining of sperm and egg to birth, thanks to a team of researchers at Boston Children's Hospital...