L1 Flashcards
1
Q
aristotle suggested two possible mechanisms for animal development
A
everything is preformed and simply grows in size
new structures are added progressively
2
Q
Weismann’s idea
A
fertilized egg contains a number of determinants that specify each cell type which are progressively segregated into individual cells as the organism divides
3
Q
roux and driesch
A
experiments which led to the founding of a new subject - evolved into modern developmental biology (disproved weismann)
4
Q
qualifications of model organisms
A
small
cheap
short generation time
fecund (many offspring)
genetically tractable
reflect some aspect of human or higher plant development
