Cleavage Flashcards
1
Q
Blastula
A
product of cleavage
2
Q
blastomere
A
individual cell in blastula
3
Q
blastocoel
A
jelly filled cavity in the center of blastula
4
Q
yolk ration
A
determines blastula shape as the yolk divides slower than the animal pole
5
Q
animal pole
A
pole of the egg opposite to the yolk, divides faster and eventually ends up as the endoderm and mesoderm as it passes through the dorsal lip
6
Q
frog cleavage
A
moderate yolk, half animal pole half vegal pole
vegal pole slower, after 8 cell divisions animal is faster
7
Q
chicken cleavage
A
too much yolk, nucleus and mitosis take place on the surface of the egg
tiny blasteocoel on surgace
8
Q
Yolk effect
A
cleavage speed
blastoceol size/location
9
Q
Asynchronous cell division
A
animal pole/= vegal pole
