EvoDevo (E1) Flashcards
Gene products
Unfertilized egg already has products
Evo/devo
Evolutionary development
Developmental regulatory genes
98.6% similar
Chimps and humans share 98.6% similarity
(Developmental) regulatory genes
The main reason why animals are more similar than it may seem
Structural genes
A gene that codes for the amino acid sequence of a protein or for a ribosomal RNA or transfer RNA
HOX genes
Control identity of body parts
2nd, 3rd, 4th tier genes
Lesser conserved genes than 1st tier regulatory genes but higher variability as you go down
“Junk” DNA
Regions of DNA that are noncoding
Silent genes
DNA sequences that are generally not expressed or expressed at a very low level
Allometry
Body geometry over time
How body parts relative to body size
Antennapedia
HOX gene first discovered in drosophila’s which controls the formation of legs during development
Antp & Ubx genes
Antp: directs antenna development
Ubx: directs abdomen segments
Apical ectodermal ridge
Induces evagination of limb buds
D’Arcy Thompson’s “Theory of Transformations”
Make new species by changing development
Fibroblast growth factor
FGF
Family of cell Signaling proteins produced by macrophages involved in crucial elements for norms, development in animal cells