1. If PBSKS is transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin. a. Why? 2. If pBSKS is transformed into JM109 cells, colonies in media with IPTG (will/will not) induce the production the B- galactosidase enzyme. a. Why?_ 3. If PBSKS is transformed into JM109 cells, colonies in the presence of X-gal will be (white/blue). Why?

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter29: Transcription And The Regulation Of Gene Expression
Section: Chapter Questions
Problem 17P
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gene. If the JM109 strain is transformed by the PBKSK plasmid, the strain will produce the B-galactosidase (from the lac gene)
and will hydrolyze X-gal to produce the blue compound. Therefore, colonies that were transformed and contain the pBSKS wil
you
appear blue.
IPTG &
X-Gal &
NO colonies
Amp
E. coli JM109
E. coli JM109
50 mM calcium
chloride-15% glycerol
lac
lac
lac
IPTG &
I Recovery
X-Gal
solution at -702C
PBSKS
White colonies
E. coli JM109
E. coli JM109
ampR
amp I
amp
lac
lac
Heat Shock
Non-transformed
42°C
E. coli JM109
E. coli JM109
amps
amps
lac
lac
IPTG &
X-Gal
lac I
Recovery
lac
PBSKS
BLUE colonies
PBSKS
ampRI
(amp
Transformed
IPTG &
X-Gal &
BLUE colonies
Amp
Hypotheses: Circle the correct answer
1. If PBSKS is transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin.
a. Why?
_
2. If PBSKS is transformed into JM109 cells, colonies in media with IPTG (will/will not) induce the production the B-
galactosidase enzyme.
a. Why?_
3. If pBSKS is transformed into JM109 cells, colonies in the presence of X-gal will be (white/blue).
a. Why?_
4. If PBSKS is not transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin.
a. Why?
5. If PBSKS is not transformed into JM109 cells colonies in media with IPTG (will/will not) induce the production the B-
galactosidase enzyme.
a.
Why?_
6. If pBSKS is not transformed into JM109 cells, colonies in the presence of X-gal will be (white/blue).
a. Why?_
Transcribed Image Text:gene. If the JM109 strain is transformed by the PBKSK plasmid, the strain will produce the B-galactosidase (from the lac gene) and will hydrolyze X-gal to produce the blue compound. Therefore, colonies that were transformed and contain the pBSKS wil you appear blue. IPTG & X-Gal & NO colonies Amp E. coli JM109 E. coli JM109 50 mM calcium chloride-15% glycerol lac lac lac IPTG & I Recovery X-Gal solution at -702C PBSKS White colonies E. coli JM109 E. coli JM109 ampR amp I amp lac lac Heat Shock Non-transformed 42°C E. coli JM109 E. coli JM109 amps amps lac lac IPTG & X-Gal lac I Recovery lac PBSKS BLUE colonies PBSKS ampRI (amp Transformed IPTG & X-Gal & BLUE colonies Amp Hypotheses: Circle the correct answer 1. If PBSKS is transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin. a. Why? _ 2. If PBSKS is transformed into JM109 cells, colonies in media with IPTG (will/will not) induce the production the B- galactosidase enzyme. a. Why?_ 3. If pBSKS is transformed into JM109 cells, colonies in the presence of X-gal will be (white/blue). a. Why?_ 4. If PBSKS is not transformed into JM109 cells, colonies will be (able/not able) to grow in the presence of ampicillin. a. Why? 5. If PBSKS is not transformed into JM109 cells colonies in media with IPTG (will/will not) induce the production the B- galactosidase enzyme. a. Why?_ 6. If pBSKS is not transformed into JM109 cells, colonies in the presence of X-gal will be (white/blue). a. Why?_
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