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News and Views
Nature 462, 46-47 (5 November 2009) | doi:10.1038/462046a; Published online 4 November 2009
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Paleobiologist / Biogeochemist
- University of Cincinnati
- Cincinnati, Ohio, USA
Postdoctoral Research Fellows
- Northwestern University
- Chicago, Illinois, United States
Genetics: Crossover control in two steps
Yonatan B. Tzur1 & Monica P. Colaiácovo1
Abstract
During meiotic cell division, chromosome pairs exchange genetic material in a tightly controlled crossover process. Higher-order chromosome structure may regulate this genetic reshuffling at two distinct stages of meiosis.
Meiosis is a cell-division program that reduces the chromosome complement by half, generating haploid gametes (eggs and sperm) from diploid germ cells. Meiosis also has another important function.
- Yonatan B. Tzur and Monica P. Colaiácovo are in the Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.
Email: mcolaiacovo@genetics.med.harvard.edu
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