Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
New Topic  
colleen colleen
wrote...
Go to Answer
Valued Member
Posts: 17077
Rep: 251 1
10 years ago
(a) Describe by labeled diagram the structural components of the lac operon in E. coli.
(b) State the function of the lac regulator gene.
(c) State the function of  β-galactosidase in the lac  system.
(d) Show by diagram the manner in which lactose brings about transcription of the three structural genes of the lac operon.
(e) Explain why certain mutations in the regulator gene (I-) of the lac system result in maximal synthesis of β-galactosidase, permease, and transacetylase even in the absence of the inducer (lactose). 
Read 560 times
1 Reply
Sunshine ☀ ☼
Replies
Answer accepted by topic starter
saviosavio
wrote...
#1
Top Poster
Posts: 2168
Rep: 818 8
10 years ago
Sign in or Sign up in seconds to unlock everything for free
1
Biology - The only science where multiplication and division mean the same thing.

Related Topics
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1137 People Browsing
 116 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1649
  
 533
  
 275
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Do you believe in global warming?