Stem Cells Make Precursors For Sperm, Eggs Oct 29, 2009
Overexpressing the three proteins together allowed the researchers to generate haploid cells -- those with only one copy of each chromosome -- expressing proteins found in mature sperm ... When treated in this manner, about 2 percent of the differentiated human embryonic stem cells were haploid after 14 days of differentiation. (Science Daily)
Inbred Bumblebees Less Successful Jul 26, 2009
Males, born from unfertilised eggs, are haploid (just one chromosome set), while females receive genetic material from a father and a mother and so are diploid (two sets of chromosomes). In situations of inbreeding, however, the likelihood of generating a freak diploid male is increased. (Science Daily)
How to be famous in a few easy steps Feb 8, 2009
The Jenkins Measure is simply the number of unspooled human haploid genomes required to stretch from home plate to the center field fence of a baseball stadium. It is elegant in its simplicity and also neatly demonstrates the essential humanity of America's greatest pastime. (Boston Globe)