Genetics lecture 4 Flashcards
1
Q
what regulates transcription
A
Transcription factors
2
Q
What happens in absence of lactose in e.coli
A
The lac repressor binds operator and transcription is blocked.
3
Q
what happens in presence of lactose in e.coli
A
The lac repressor is released from the operator allowing for trnascription.
4
Q
totipotence of somatic cells means…
A
denucleated eggs can be fertilised using nucleus from somatic cells.
5
Q
what is the structure of chromatin
A
histones with DNA wrapped around.
6
Q
A
