The history of human Y chromosome research can be divided into three eras. The first era focused on mendelian examination of human family trees. In the opening decades of the twentieth century, ...
This is a preview. Log in through your library . Journal Information This monthly journal, begun in 1950, is devoted entirely to research in pure and applied mathematics, principally to the ...
Flurries of questions about mysterious triangle-shaped snowflakes may soon subside, thanks to new research on snowflake formation. Most snowflakes are hexagons because of the arrangement of hydrogen ...
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