Culture colony of the bacteriophage M13,used as a source of DNA fragments containing the Sry (sex- determining region Y) gene,the switch that redirects mammalian development from its usual pathway - female - to male. Joint research by the Medical Research Council & Imperial Cancer Research Fund showed that some normal,chromosomally-female mice embryos developed as males with testes following their injection with a small 14-kilobase fragment of DNA containing Sry. The DNA for Sry was released from its phage vector by digestion with a restriction enzyme,isolated by gel electrophoresis (part of the autoradiogram is shown here) & then purified | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Plailly, Philippe |
Bildgröße: | 5125 px × 3429 px |
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