来自MSN8 天
In US Northwest, South Cascade is where glacier science grew up
Ideal for studying - South Cascade Glacier sits in a basin at the head of the South Fork of the Cascade ... Measurements ...
Nature4 年
Genetic Signaling: Transcription Factor Cascades and Segmentation
In fruit flies, the signaling cascade is initiated by maternally provided ... but is "off" by the time somite formation is complete. Because Notch serves as a transcription factor, it alters ...