Homework Answers
Answer: (C) is transcribed with the stristruct lac genes.
In the absence of lactose, lac repressor binds to the operator and keeps RNA polymerase from transcribing the lac genes.
Add Answer to:
Question 51 (1 point) The lactose repressor protein a) is activated by binding lactose b) is...
1) The lac operon is… a) Positive repressible b) Both negative inducible and positive repressible c)...
1) The lac operon is… a) Positive repressible b) Both negative inducible and positive repressible c) Positive inducible d) Negative inducible 2) An activator regulatory protein… a) Is involved in negative regulatory control b) Is a cis acting regulatory element c) Recruits RNA polymerase to the promoter d) Prevents RNA polymerase from binding the promoter 3) For the lac operon, the presence of the substrate (lactose) activates the repressor. True or False? a) true b) false 4) cAMP… a) Activates...
Yet, all the cells in your body contain the same genes (and same alleles). The difference...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
all them please Question 23 (1 point) The A and B alleles in ABO blood types...
all them please
Question 23 (1 point) The A and B alleles in ABO blood types can give rise to an individual that is blog type AB. This specific blood type is an example of: A) multiple alleles B) epistasis C) codominance D) partial dominance Imagine the gene encoding the lac repressor was mutated so that lactose (more technically allolactose) no longer bound to the repressor. However, the lac repressor was still capable of binding DNA at the operator sequence....
The LacI protein is released from the operator sequence upon binding of IPTG, allowing the transcription...
The LacI protein is released from the operator sequence upon binding of IPTG, allowing the transcription of all the genes within the lac operon. In this case, LacI is called a transcriptional _______. In comparison, CRP binds to the CRP binding site sequence upon binding of cAMP, enhancing transcription. CRP is called a transcriptional _______. Select one: a. activator ;;;;; activator b. activator ;;;;; repressor c. repressor ;;;;; activator d. repressor ;;;;; repressor e. None of these
QUESTION 6 The lac repressor in bacteria _______, and when lactose is present, the lac genes...
QUESTION 6 The lac repressor in bacteria _______, and when lactose is present, the lac genes ______. Activates transcription of lactose-metabolism genes; are transcribed Activates transcription of lactose-metabolism genes; are NOT transcribed Inhibits transcription of lactose-metabolism genes; are transcribed Inhibits transcription of lactose-metabolism genes; are NOT transcribed 0.5 points QUESTION 7 There are ____ different nucleotide bases in DNA and RNA and ___ different amino acids. 3; 61 3; 21 4; 20 4; 61 0.5 points QUESTION 8...
Hello! Please help with this genetics question! Question 17 (1 point) Which of the following is...
Hello! Please help with this genetics question!
Question 17 (1 point) Which of the following is an example of a protein that is not allosteric? Oi (repressor protein) Operator region (Lac operon) O CAP protein Lactose Permease GAL3 attenuation region (trp operon) promoter region (Lac operon Question 18 (1 point) The CAP binding region of the lac operon is located 5 prime of the promoter region at the 5 prime edge of the promoter regional between the promoter region and...
The lac operon contains a DNA sequence known as the lac promoter (P or P+ for...
The lac operon contains a DNA sequence known as the lac promoter (P or P+ for wild type; P– for mutant (RNA polymerase does not bind)) that serves as the RNA polymerase binding site. The lac operon also contains a DNA sequence known as the Lac operator (O or O+ for wild type; O– or Oc for mutant (lac repressor cannot bind)) which is the binding site for lac repressor. The lac repressor, a protein, is encoded by the lac...
LUCIDUVIIDIUV SCI ed: Nov 14 at 2:03pm iz Instructions Question 64 10 pts Answer the following...
LUCIDUVIIDIUV SCI ed: Nov 14 at 2:03pm iz Instructions Question 64 10 pts Answer the following questions in regards to the lac operon under the following conditions. CAMP levels are very low. Lactose is present. 1) Are glucose levels high or low? 2) Is the repressor active or inactive? 3) What (or Why is it) activated/inactivated the repressor? 4) Is the CAP active or inactive 5) How much transcription would occur at the lac operon? Here you only need to...
for 1-5 define those The Lac operon is an inducible set of genes found in bacteria...
for
1-5 define those
The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
1) Which of the following conditions is most likely to cause the lactose operon to be...
1) Which of the following conditions is most likely to cause the lactose operon to be transcribed? A) There is more glucose in the cell than lactose. B) There is glucose but no lactose in the cell. C) The cyclic AMP and lactose levels are both high within the cell. D) The CAMP level is high and the lactose level is low. 2) How does the transcription of structural genes in an inducible operon occur? A) It occurs continuously in...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
all them please
Question 23 (1 point) The A and B alleles in ABO blood types can give rise to an individual that is blog type AB. This specific blood type is an example of: A) multiple alleles B) epistasis C) codominance D) partial dominance Imagine the gene encoding the lac repressor was mutated so that lactose (more technically allolactose) no longer bound to the repressor. However, the lac repressor was still capable of binding DNA at the operator sequence....
Hello! Please help with this genetics question!
Question 17 (1 point) Which of the following is an example of a protein that is not allosteric? Oi (repressor protein) Operator region (Lac operon) O CAP protein Lactose Permease GAL3 attenuation region (trp operon) promoter region (Lac operon Question 18 (1 point) The CAP binding region of the lac operon is located 5 prime of the promoter region at the 5 prime edge of the promoter regional between the promoter region and...
LUCIDUVIIDIUV SCI ed: Nov 14 at 2:03pm iz Instructions Question 64 10 pts Answer the following questions in regards to the lac operon under the following conditions. CAMP levels are very low. Lactose is present. 1) Are glucose levels high or low? 2) Is the repressor active or inactive? 3) What (or Why is it) activated/inactivated the repressor? 4) Is the CAP active or inactive 5) How much transcription would occur at the lac operon? Here you only need to...
for
1-5 define those
The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
1) Which of the following conditions is most likely to cause the lactose operon to be transcribed? A) There is more glucose in the cell than lactose. B) There is glucose but no lactose in the cell. C) The cyclic AMP and lactose levels are both high within the cell. D) The CAMP level is high and the lactose level is low. 2) How does the transcription of structural genes in an inducible operon occur? A) It occurs continuously in...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago