Word: geneses
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To understand why, you need to know about a curious feature of some genes. Except for the genes that occur on the sex-determining X and Y chromosomes, it generally doesn't matter whether you inherit a particular stretch of DNA from your mother or your father. In the past...
As a rule, genes imprinted by the father would, if they worked in isolation, favor larger fetuses--presumably to give them a better shot at survival. The mother imprints the genes in such as way as to favor smaller fetuses--presumably so she'll have enough strength to bear more...
What the Duke researchers showed is that one gene, called IGF2R, which helps brake growth, is normally imprinted in sheep, cows and mice but not in humans. Human clones would always inherit nonimprinted IGF2R genes, so there would be no chance of a mix-up and, at least in this...
The result--the DNA microarray--is one of the most powerful tools in modern biology. Genetic material from the cell being studied is poured over the microarray and incubated in a solution containing fluorescent snippets of the same genes. If a gene is active, a corresponding gene on the microarray...
Meanwhile, Wilson was blazing other trails. Fascinated by ant societies, he began seeing parallels in the social interactions of birds, lions, monkeys, apes and even humans. In a 1975 book audaciously titled Sociobiology: The New Synthesis, he charted in evolutionary terms the social architecture of a wide range of species...