Homeobox genes Flashcards
1
Q
what is an example of an homeobox gene?
A
- Hox gene
2
Q
Are homeobox genes, hox genes?
A
- no, only some
3
Q
what is homeodomain?
A
- region of the protein
4
Q
How do homeobox gene work?
A
- homeobox gene codes for a homeodomain protein
- homeodomain protein is a transcription factor
- regulates expression of other genes
- can act as an activator (turns on) or as a repressor (turns off) genes that…
- control the development of body plans
5
Q
What are body plans?
A
- organisation of the body
6
Q
What do we mean by highly conserved by species?
A
- animals/plants/fungi
- very old
- very important
7
Q
Why highly conserved species important?
A
Mutations would…
- change body plan
- affect the expression of other genes
- likely to be fatal (selected against)
