Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).<br>Assertion: MTT assay is used to determine cell viability based on the principle of color formation by DNA fragmentation.<br>Reason: MTT assay is used to determine cell viability based on the color development by converting tetrazolium soluble sail to insoluble salt.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true and (R) is not the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Correct Answer: Both (A) and (R) are true and (R) is the correct reason for (A)

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: The enzymatic degradation of cell wall to obtain single cell called protoplast has helped immensely in developing somatic cell genetics in plants.
Reason: In plants or animals, fusion of two cells must occur through the plasma membrane.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true and (R) is not the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: The elucidation of ribosome structure helps in the development of new generation drugs.
Reason: The high resolution of macromolecular structure has enabled in structure-based drug design.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true but (R) is not the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: Cell mass yield of a methylotrophic yeast is more on methanol compared to glucose.
Reason: Methanol has a greater degree of reductance compared to glucose.

Both (A) and (R) are correct and (R) is the correct reason for (A)

(A) is correct, (R) is false

(A) is false, (R) is correct

Both (A) and (R) are correct but (R) is not the correct reason for (A)

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: It is possible to regenerate a whole plant from a single plant cell.
Reason: It is easier to introduce transgenes into plants than animals.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true but (R) is not the correct reason for (A)

Both (A) and (R) are false

(A) is true but (R) is false

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: The production of secondary metabolites in plant cell cultures is enhanced by the addition of elicitors.
Reason: Elicitors induce the expression of enzymes responsible for the biosynthesis of secondary metabolites.

Both (A) and (R) are true but (R) is not the correct reason for (A)

Both (A) and (R) are true and (R) is the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: In synchronous culture, majority of the cells move to next phase of the cell cycle simultaneously.
Reason: Synchronous culture could be obtained by starving cells for essential nutrient components.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true but (R) is not the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: Bacterial growth is called synchronous when majority of the cells are in same stage of the bacterial cell cycle.
Reason: Synchronous culture can be obtained by growing bacteria in an enriched medium

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true but (R) is not the correct reason for (A)

(A) is true but (R) is false

(A) is false but (R) is true

Determine the correctness or otherwise of the following Assertion (a) and Reason (r).
Assertion (a): During welding of aluminium alloys by the gas tungsten arc welding process, direct current reverse polarity (DCRP) mode is used.
Reason (r): DCRP facilitate breaking up of the oxide film on the workpiece surface.

a is true but r is false

a is false but r is true

both a and r are true, and r is the reason for a

both a and r are true, and r is not the reason for a

Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: The association constant in water for the G-C base pair is three times lower than that for the A-T base pair.
Reason: There are three hydrogen bonds in the G-C base pair and two in the A-T base pair.

Both (A) and (R) are true and (R) is the correct reason for (A)

(A) is false, but (R) is true

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct reason for (A)

Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: An antigen recognized by one immunoglobulin subtype is not recognized by any other subtype.
Reason: Immunoglobulin subtypes differ from each other both in the variable and in the constant regions.

Both (A) and (R) are true and (R) is the correct reason for (A)

Both (A) and (R) are true but (R) is not the correct reason for (A)

Both (A) and (R) are false

(A) is true but (R) is false