Are localized PEM mRNA and protein involved in cleavage-plane orientation and unequal cell divisions in ascidians?
The complex cleavage pattern in ascidian embryos can be explained by a simple rule of centrosome attraction mediated by localized PEM activity. PEM is the first gene identified in ascidians that is required for multiple spindle-positioning events.
STP using elastic bands performed for 6 weeks was effective to improve muscular power and ball speed for young female handball players.