There are various methods to distinguish whether a colony contains a recombinant or not. One such method is __________

There are various methods to distinguish whether a colony contains a recombinant or not. One such method is __________ Correct Answer blue white screening

Blue white screening is a method to know whether a colony is having a recombinant or not. It is also known as alpha complementation method. It is based on the lacZ operon. If there is an insert, the colonies are white in colour and if there is no insert, the colonies are blue in colour.
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Related Questions

Which of the following statements regarding static methods are correct?
1. Static methods are difficult to maintain, because you can not change their implementation.
2. Static methods can be called using an object reference to an object of the class in which this method is defined.
3. Static methods are always public, because they are defined at class-level.
4. Static methods do not have direct access to non-static methods which are defined inside the same class.
Statement : Residents from Model Colony coming under North Ward of City X have complained to the Ward Officer that for last three days the tap water in the ward is contaminated and no action is being initiated by municipal staff.

Courses of Action :
I. The Ward Officer of North Ward should initiate action against residents who have lodged complaints against municipal staff.
II. The Ward Officer should ask his junior officer to visit Model Colony to assess the actual condition of water with his staff and to get samples of water tested from laboratories.
III. The Ward Officer should ask Ward Engineer to check water installations and pipelines in the Model Colony area.
A recombinant protein is to be expressed under the control of the lac promoter and operator in a strain of E. coli having the genotype lacI+ crp+. Even in the absence of inducer IPTG, low levels of expression of the recombinant protein are seen (leaky expression). Which one of the following should be done to minimize such leaky expression?
Article 74(2) the question whether any, and if so what, advice was tendered by Ministers to the President shall not be inquired into in any court.
In the light of article 74(2) and decided cases, test the correctness of the following statements:
Statement 1. The Courts are justified in probing as to whether there was any material on the basis of which the advice was given, and whether it was relevant for such advice and the President could have acted on it.
Statement 2. When the Courts undertake an enquiry into the existence of such material, the prohibition contained in article 74(2) does not negate their right to know about the factual existence of any such material.
X had made some communications to his wife Y during their marriage under Section 122 of the Evidence Act, the correct proposition are:
1. X can be compelled to disclose such communications before the Court, if Y consents, in any proceeding.
2. X can be compelled to disclose such communication whether Y consents or not in any proceedings
3. Y can be compelled to disclose such communication whether X consents or not in a divorce proceedings between them
4. Y may be permitted by Court, if deems fit, to disclose any such communication in a criminal proceedings not between X and Y.
Which of the following are methods of calculating goodwill?
1. Average profit method
2. Super profit method
3. Log method
4. Sum of years digit method
5. Capitalisation of average profit method
6. Capitalisation of super profit method
7. FIFO method
Select the correct answer:
The number of bacteria in a colony was growing exponentially . At 1 pm yesterday the number of bacteria was 1000 and at 3 pm yesterday it was 4000. How many bacteria were there in the colony at 6 pm yesterday ?
At times it is observed that non-recombinant plasmids are more than that of recombinant plasmids. Choose the correct statement in regard to it.
Steps of Recombinant DNA technology are given below.
1. Identification and isolation of the genetic material.
2. Fragmentation of DNA.
3. Obtaining the foreign gene product.
4. Downstream processing.
5. Ligation of DNA fragmentation into the vector.
6. Isolation of desired DNA fragments.
7. Amplification of gene of interest.
8. Transfer of Recombinant DNA into the host cell/organism.
The correct sequence of steps is
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