Home
Class 12
BIOLOGY
With respect to DNA fragmentation: State...

With respect to DNA fragmentation:
Statement A: Gel electrophoresis and elution are two important processes.
Statement B: After staining with ethidium bromide it has to be exposed to U.V. light.

A

Only A is correct

B

Both A and B are corret statements

C

Only B is correct

D

Only A is correct and B is incorrect.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

These questions consist of two statements each,printed as Assertion and Reason.While asnwering these questions you are required to chose any one of the following four responses. If both Assertion and Reason are true and Reason in correct explanation of Assertion. If both assertion and Reason are true but reason is not correct explanation of Assertion. If Assertion is true but Reason is false. If both Assertion and Reason are false. Assertion:Light plays an important role in process of transpiration. Reason:Light leads to potning f stomata and in dark stomata get closed.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Presently the global atmosphere is warming up. Reason. The depletion of stratospheric ozone layer has resulted in increase in UV radiations reaching earth.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: In angiosperms the conduction of water is more efficient because their xylem has vessels. Reason: Conduction of water by vessel elements is an active process with energy supplied by xylem parenchyma rich in mitochondira.

Three beakers labelles as A, B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO_4 and NaCl were added to the breakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions containers in beaker A, and B, where in case of beaker C, the temperature of the solution falls. Which one of the following statements(s) is(are) correct? (i) In beaker A and B, exothermic process has occured. (ii)In beaker A and B, endothermic process has occured. (iii) In beaker C exothermic process as occured. (iv) In beaker C endothermic process has occured.

Let A_(1),G_(1),H_(1) denote the arithmetic, geometric and harmonic means respectively, of two distinct positive numbers. For nge2 , let A_(n-1),G_(n-1)" and "H_(n-1) has arithmetic,geometric and harmonic means as A_(n),G_(n),H_(n) respectively. Which of the following statement is correct? a. H_(1)gtH_(2)gtH_(3)gt"......." b. H_(1)ltH_(2)ltH_(3)lt"......." c. H_(1)gtH_(3)gtH_(5)gt"......." " and " H_(2)ltH_(4)ltH_(6)lt"......." d. H_(1)ltH_(3)ltH_(5)lt"......."" and " H_(2)gtH_(4)gtH_(6)gt"......."