lac operon

Genetics as it applies to evolution, molecular biology, and medical aspects.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
klapausius
Garter
Garter
Posts: 26
Joined: Sat Apr 10, 2010 10:49 am

lac operon

Post by klapausius » Tue May 04, 2010 4:44 pm

Under normal onditions in wild-type e.coli, the lac operon is under _______control.
a) positive
b) negative
c) inducible
d) both b and c
e) all of the above

my answer b) negative
although it is inducible, "inducible is not a control" < is this statement correct?
or should the answer be d) ?

plasmodesmata11
Coral
Coral
Posts: 198
Joined: Sun Nov 30, 2008 3:51 am
Location: University of Rhode Island

Post by plasmodesmata11 » Thu May 06, 2010 1:54 am

i would say go with d
though it isn't necessarily termed "inducible conrol", it is inducible (as you know)
if this is a test, it's testing what you know, and it probably wants to see that

User avatar
JackBean
Inland Taipan
Inland Taipan
Posts: 5694
Joined: Mon Sep 14, 2009 7:12 pm

Post by JackBean » Thu May 06, 2010 7:52 am

I'm not sure, but if is it inducible, isn't that positive control?
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

simpleton
Garter
Garter
Posts: 34
Joined: Thu Mar 18, 2010 3:48 am

Post by simpleton » Thu May 06, 2010 7:55 am

conclusion is.. our prof can be quite ambiguous with his questions! :P

akki313
Garter
Garter
Posts: 6
Joined: Sun May 16, 2010 5:39 pm

Re: lac operon

Post by akki313 » Sun May 16, 2010 6:08 pm

It's negative inducible..

Post Reply

Who is online

Users browsing this forum: No registered users and 5 guests