The cells that make up the limb bud are derived from various cells, except?

a) Trophoblast cells

b) lateral plate mesoderm

c) Blastema cells

d) Somites cell

e) bud’s overlying ectoderm

#Question id: 13235

#Unit 6. System Physiology – Plant

#Question id: 19814

#Unit 12. Applied Biology

#Question id: 7199

#Unit 5. Developmental Biology

Following statements are regarding to the establishment of ventral axis in Drosophila.

A. Ventral follicle cells synthesize Pipe. Pipe signal sulfates ventral vitelline proteins.

B. GD cleaves Snake to its active form and forms a complex with Snake and uncleaved Easter proteins.

C. Sulfated vitelline membrane proteins bind Gastrulation-defective (GD).

D. Easter protein is cleaved into its active form. Cleaved Easter binds to and cleaves Spätzle; activated Spätzle binds to Toll receptor protein.

E. Dorsal protein enters the nucleus and ventralizes the cell.

F. Toll activation activates Tube and Pelle, which phosphorylate the Cactus protein. Cactus is degraded, releasing it from Dorsal.

Which of the following is the correct sequence?

#Question id: 2040

#Unit 4. Cell Communication and Cell Signaling

The role of complement in rapid response to a first exposure to a variety of organisms involves which of the following?

#Question id: 4200

#Unit 3. Fundamental Processes

 At the beginning of translocation, the growing peptide chain is attached to tRNA located at the __ on the ribosome.