The eye Flashcards
1
Q
what are the main parts of the early eye and what do they develop from
A
the retina: develops from the neural tube
the lens: develops from the optic placode
the cornea: develops from the epidermis
2
Q
what are the three main experimental approaches used in developmental biology
A
cutting
pasting
painting
3
Q
what is the first stage in eye development and how does it occur
A
the first stage is the formation of the lens. It occurs when the optic vesicle is in close proximity to the surface epidermis.
4
Q
what is pax6
A
pax6 is the transcription factor involved in lens development and is expressed in both the epidermis and optic vesicle.
5
Q
what is crystallin
A
crystallin is a marker used to measure pax6 expression. where crystallin is expressed a lens will usually form.
