#Question id: 6949
#SCPH06 I Botany
During gastrulation in Xenopus, the future mesoderm and endoderm move inside the embryo through the "blastopore"; in contrast, in chickens, gastrulation involves cells moving inward through the:
#Question id: 27817
#Research Methodology
Which of the following is an example of a nominal level of measurement?
#Question id: 5229
#SCPH06 I Botany
Two eukaryotic proteins have one domain in common but are otherwise very different. Which of the following processes is most likely to have contributed to this phenomenon?
#Question id: 19658
#SCPH05 I Biotechnology
#Question id: 5130
#SCPH01 Biochemistry
Regulation by gradients of paracrine factor concentration was elegantly demonstrated by the specification of different mesodermal cell types in the frog Xenopus laevis by activin, a paracrine factor of the TGF-beta family. Which of the following observations are correct from this graph?
