#Question id: 21113
#Unit 12. Applied Biology
#Question id: 7201
#Unit 5. Developmental Biology
Many of the cell and tissue movements in Xenopus
gastrulation happen simultaneously. Still identify the different types of
behaviors that occur during Xenopus gastrulation:
A. Epiboly: The thinning
and spreading of the animal cap cells over the vegetal hemisphere, powered by
proliferation and radial intercalation.
B. Vegetal rotation:
Vegetal cells asymmetrically press up against the inner blastocoel roof on the
dorsal side.
C. Bottle cell formation
and invagination: The leading edge of invaginating cells crawls up onto the
blastocoel roof.
D. Involution and cell
migration: Localized apical constriction at the dorsal blastopore lip creates
anisotropic forces that foster invagination.
E. Convergence and
extension: The targeted medial-to-lateral intercalation of cells on the midline
(convergence) drives anterior-posterior axis elongation (extension).
Which of the following definition are correct according to their process?
#Question id: 31107
#Unit 2. Cellular Organization
#Question id: 190
#Unit 1. Molecules and their Interaction Relevant to Biology
Ca++ or Mg++ are most likely to be part of ________, while Zn++ or Fe++ are present in ________.
#Question id: 15747
#Unit 5. Developmental Biology