Long the science where math mattered less, biology increasingly demands powerful quantitative skills. Teaching students the math they need, though, is more than just 1 + 1=2. Read about how real-world math problems may make students better biologists. Also in this issue:
Children with the subtlest form of autism suffer social isolation; those with more severe disease face a much tougher road.
Animals have evolved intricate ways to ensure that gene activity is the same in males and females despite the inherited imbalance of X chromosomes.
As scientists learn more about how to produce and manipulate stem cells¿amid high expectations and close scrutiny¿no one is ready to choose any one approach over the other.
The HHMI Bulletin is a quarterly print and online magazine featuring stories about the discoveries and innovations of HHMI scientists and grantees.