ISSN:
1546-1718
Quelle:
Nature Archives 1869 - 2009
Thema:
Biologie
,
Medizin
Notizen:
[Auszug] Birds diverged from mammals 300–350 million years ago (Mya). In mammals, the male is the heterogametic sex (XY male and XX female) and 'maleness' is under the control of a testis-determining factor, SRY, located on the Y chromosome. In contrast, sex determination in birds operates through a ...
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1038/6769