In the Lab
![X and Y chromosomes in mice](https://www.mskcc.org/sites/default/files/styles/width_200/public/node/197344/main_image/crocodile_3x2.jpg)
Breaking Up Is Hard to Do (Especially for Sex Chromosomes)
One’s big, one’s small. Somehow, they make it work.
In the Lab
![Pictured: Charles L. Sawyers, William Polkinghorn & Simon Powell](https://www.mskcc.org/sites/default/files/styles/width_200/public/node/25999/image/sawyers-polkinghorn-powell.jpeg)
Molecular Studies Explain Effectiveness of Longtime Treatment for Prostate Cancer
Laboratory studies have revealed an explanation for why androgen-deprivation therapy makes radiation therapy more effective in the treatment of high-risk prostate cancer.
![Pictured: Maria Jasin](https://www.mskcc.org/sites/default/files/styles/width_200/public/node/6639/image/536094.jpg)
Studies Provide New Insight into Fundamental Biological Process
Developmental biologist Maria Jasin studies homologous recombination, which is important in DNA repair and can lead to cancer when it malfunctions.