#Question id: 6961
#XL - T Zoology
Do HOX genes play a role in the development of C. elegans?
#Question id: 6962
#XL - T Zoology
In which way is the organizer region of the sea urchin similar to that in frogs?
#Question id: 6964
#XL - T Zoology
If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?
#Question id: 6965
#XL - T Zoology
what type of cleavage is used in frog embryos?
#Question id: 6966
#XL - T Zoology
During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:
#Question id: 6967
#XL - T Zoology
Gastrulation in sea urchins, Drosophila, and Xenopus all begin with a change in cell shape, in which the apical surface of an epithelial sheet contracts. This process is called: