Mechanisms of transcriptional memory. Francis, N. J. & Kingston, R. E. Nature Reviews Molecular Cell Biology June (2001).

Sex and the X. Hurst, L. D. Nature 10 May (2001). A News and Views article about newly identified spermatogenesis genes that are over-represented on the mouse X chromosome — a finding that supports the idea that sex-chromosome genes are involved in the development of sexual dimorphism.

Cloning and genetic determinism — a call for consistency. Caulfield, T. Nature Biotechnology May (2001).

Microarrays: lost in a storm of data? Miles, M. F.

Sharing gene expression data: an array of options. Geschwind, D. H.

Microarrays in brain research: the good, the bad and the ugly. Mirnics, K. Nature Reviews Neuroscience June (2001). A series of Perspective articles on the role of microarray technology in modern neurobiology.

The birth of computational structural biology. Levitt, M. Nature Structural Biology May (2001).

Lessons from a small genome. Pearlman, R. E. Nature Genetics May (2001). A News and Views article that reports the sequencing of the smallest nuclear genome — that of an endosymbiotic red algae — and highlights the lessons in basic genome organization and regulation that can be learnt from this tiny genome.

Molecular targets for breast cancer therapy and prevention. Bange, J., Zwick, E. & Ullrich, A.

Breast cancer genetics: what we know and what we need. Nathanson, K. N., Wooster, R. & Weber, B. L. Nature Medicine May (2001).

Insight on cancer.Nature 17 May (2001). The causes of cancer are many and varied, as reflected by the topics covered in this Insight supplement, which include genetic predisposition, environmental influences, infectious agents and ageing.

Developmental circuits rewired. Szathmary, E. Nature 10 May (2001). A News and Views article about the genetic circuits involved in body segmentation in invertebrates, and how computer models of these networks predict that evolution favours certain circuits at certain times, depending on the patterning task to be accomplished.