Lecture 12: Development of Multicellular Organisms Flashcards
1
Q
Pathways that come together to help develop specific organisms (start w fertilized egg)
A
Fertilized egg gets cleaved –> blastula (16 cell stage) –> gastrulation –> gastrula
2
Q
What is gastrulation
A
early formation of different germ layers (3)
3
Q
3 germ layers
A
-Ectoderm (skin and nervous system)
-Mesoderm (musculature)
-Endoderm (internal organs)
4
Q
graded effects
A
the effect that results at high conc of signalling factor is different than affect at low conc
5
Q
3 axis
A
-animal vegetal (AV)
-anterior posterior (AP)
-dorsal ventral (DV)
6
Q
animal vegetal axis
A
internal vs external
7
Q
anterior posterior axis
A
head vs tail
8
Q
dorsal ventral axis
A
back vs belly
9
Q
A
