#Question id: 4454
#Unit 3. Fundamental Processes
Correct series of sigma regions,
#Question id: 7218
#Unit 5. Developmental Biology
Following statements are regarding to convergent extension of the dorsal mesoderm in xenopus.
A. For convergent extension the first force is a polarized cell cohesion wherein the involuted mesodermal cells intercalate and the second force is differential cell cohesion.
B. The intercalations of mesodermal cells, both mediolaterally and radially, are stabilized by the planar cell polarity (PCP) pathway that is initiated by Wnts independent of β-catenin signaling.
C. The intercalations of mesodermal cells, are stabilized by the planar cell polarity (PCP) pathway that is initiated by Wnts dependent of β-catenin signaling.
D. Another factor regulating convergent extension is calcium influx from environment.
E. Ca2+ is released from intracellular stores and is required for convergent extension.
Which of the following combination is correct?
#Question id: 17197
#Unit 7. System Physiology – Animal
#Question id: 19924
#Unit 12. Applied Biology
#Question id: 8850
#Unit 9. Diversity of Life Forms
Whatever its ultimate cause(s), the Cambrian explosion is a prime example of