Environmental Influences Flashcards
1
Q
Pathological environmental influences
A
Environmental factors disturb the course of normal development
2
Q
Facultative environmental influences
A
The organism has evolved to assimilate environmental influences into its genetic programs
ex: ants
3
Q
Teratogen
A
An exogenous agent that might interfere with normal development of a fetus
ex: thalomide caused los of long bones in arms
4
Q
Teratogen sensitive period
A
An exogenous agent that might interfere with the normal development of a fetus
5
Q
Thalidomide
A
- Thalidomide binds to Cereblon (CRBN) protein
- CRBN with mutated Thalidomide binding site
- When Thalidomide binds to CRVN, SALL4 gets targeted
- No SALL4 txn factor, no limb feedback loop.
6
Q
Polyphenism
A
Set environmentally determined phenotypes
7
Q
Reaction Norm
A
A continuous range of environmentally determined phenotypes
