In 1961 Mary Lyon, an English scientist, hypothesized that one of the two X chromosomes in females becomes genetically silent early in a female embryo's development. To understand how she arrived at this idea, which has come to be known as...

In medicine (genetics), a mosaic or mosaicism denotes the presence of two populations of cells with different genotypes in one individual, who has developed from a single fertilized egg. Mosaicism may result from a mutation during development which is...

Hebrew was spoken by the Jewish people after the conquest of Israel (c. 13th century BCE). Following a gradual decline (even Jesus, "King of the Jews," was a native speaker of Aramaic rather than Hebrew), it ceased to be spoken during the second...

Soybean mosaic virus (SMV) causes mosaic symptoms in susceptible soybean [Glycine max (L.) Merr.] cultivars and stem-tip necrosis (STN) in some soybean cultivars carrying resistance genes. The objective of this study was to examine the effect of different temperature regimes on the expression of...

Here’s something ordinary New Yorkers don’t often get to see: a candidly worded strategy memo from a lobbyist on how to create the appearance of racial diversity. Richard Lipsky, a lobbyist for the Neighborhood Retail Alliance, is trying to organize a “diverse umbrella coalition” of...

Experts have restored a 1,400-year-old glass mosaic glowing in gold, recovered from a site next to the Mediterranean Sea, the Israel Antiquities Authority announced Monday.The mosaic panel is believed to be the only one in the world, the antiquities authority said, citing the quality of...