signalling pathways

Question 1

describe BMP

Answer 1

morphogen
DV pattern
smad tfs
organiser cells express antagonists

Question 2

describe Wnt

Answer 2

morphogen
axis formation
antagonists act anteriorly

Question 3

describe Shh

Answer 3

morphogen
limb patterning
GLI tfs

Question 4

describe Hox

Answer 4

transcription factor
positional(hindbrain) AP

Question 5

describe delta/notch

Answer 5

contact dependant
notch = receptor
neural cell fate if low delta notch

Question 6

describe Ephs

Answer 6

guidance cues
boundary formation

Question 7

describe robo

Answer 7

guidance cue
midline crossing
signalling pathway = Rho gtpases

Question 8

describe NGF

Answer 8

growth factor
receptors are TrkA(high affinity) and p75NTR(low affinity)