Home
Class 12
BIOLOGY
A: Selection of recombinants due to inac...

A: Selection of recombinants due to inactivation of antibiotics is cumbersome procedure.
R: It requires simultaneous plating on two plates having different antibiotics.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion

C

If Assertion is true statement but Reason is false

D

If both Assertion and Reason are false statements

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • BIOTECHNOLOGY-PRINCIPLES AND PROCESSES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION-C (Previous Years questions )|55 Videos
  • BIOTECHNOLOGY AND ITS APPLICATIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - D) (ASSERTION - REASON TYPE QUESTIONS)|10 Videos
  • BODY FLUIDS AND CIRCULATION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment Section - D Assertion - Reason Type Questions|9 Videos

Similar Questions

Explore conceptually related problems

In a bacterial culture, some of the colonies produced blue colour in the presence of a chromogenic substrate and some did not due to the presence or absence of an insert (rDNA) in the coding sequence of beta - galactosidase. (a) Mention the mechanism and the steps involved in this experiment. (b) How is it advantageous over simultaneous plating on two plates having different antibiotics?

For selection of recombinants, insertional inactivation of antibiotic marker has been superseded by insertional inactivation of a marker gene coding for a chromogenic substrate. Give reasons.

Some foreign DNA fragment is attached to Cla I site of pBR 322. This recombinant vector is used to transition Escherichia coli. The cells subjected to transformation are plated on two different media, one containing ampicillin and the other containing tetracycline. The transformed cells containing the recombinant vector will

A: Many countries have banned the use of antibiotics in the cattle feed. R: Dairymen give antiobiotics in the feed to the cattle and it becomes breedig grounds for the antibiotics in the cattle feed. R: Dairymen give antibiotics in the feed to the cattle and it becomes breeding grounds for the antibiotic resistant bacteria.

Replica plate experiment by Lederberg showing antibiotic resistance proves

Two parallel plate capacitors are filled with dielectrics and connected separately across same potential difference as shown in figure. Their plate area is A and separation between plates is 'd' . Then the ration of energy stored is:

Two parallel plate capacitors are filled with dielectrics and connected speparately across same potential difference as shown in figure. Their plate area is A and separation between plates is 'd' . Then the ration of energy stored is:

If a recombinant DNA bearing gene for resistance to antibiotic ampicillin is transferred to E.coli cells, the host cells become transformed into ampicillin resistant cells. If such bacteria are transferred on agar plates containing ampicillin, only transformants will grown and the untransformed recipient cells will die. The ampicillin resistant gene in this case is called as 1) selectable marker 2) recombinant protein 3) cloning site 4) chemical scalpels

Two large vertical and parallel metal plates having a separation of 1cm are connected to a DC voltage source of potential difference X. A proton is released at rest midway between the two plates. It is found to move at 45^@ to the vertical JUST after release. Then X is nearly

A parallel plate capacitor consists of two metal plates of area A and separation d . A slab of thickness t and electric constant K is inserted between the plates with its faces parallel to the plates and having the same surface area as that of the plates. Find the capacitance of the system. IF K=2 , for what value of t//d will the capacitance of the system be 3//2 times that of the air capacitor? Calculate the energy in the two cases and account for the energy change.