Tracing how the sexes develop

Article Abstract:

Researchers are making rapid progress in discovering how sex is determined in the fruit fly, the nematode and in mammals. The sex-determination genes are different for all three species, indicating that species have very different methods for achieving the same goal.

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Snaring the genes that divide the sexes for mammals

Article Abstract:

Detailing the genetic pathways that result in sex determination in mammals has been hindered by the inability of developmental biologists to use what is known about sex determination in simpler organisms to guide mammalian research.

Mammals

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Knocking genes in instead of out

Article Abstract:

A research team led by Alexandra Joyner has devised a method to study gene function by replacing one mouse gene with another. The method allows geneticists to determine whether two genes are functionally equivalent.

Methods, Genetic research

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