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Assertion : A correct concentration of a...

Assertion : A correct concentration of auxin and cytokinin is required for the development of root and shoot in callus.
Reason: When the ratio of kinetin to auxin is high only shoot develop but when the ratio is low only roots develop

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
A
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Statement-1(Assertion) and Statement-2 (reason) Each of these question also has four alternative choices, only one of which is the correct answer. You have to select the correct choice as given below. (a) Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation for Statement-1 Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement -1 (c) Statement -1 is true, Statement -2 is false (d) Statement -1 is false, Statement -2 is true Statement -1 The equation 7^(log_7(x^3+1))-x^2=1 has two distinct real roots . Statement -2 a^(log_aN)=N , where agt0 , ane1 and Ngt0

Statement-1(Assertion) and Statement-2 (reason) Each of these question also has four alternative choices, only one of which is the correct answer. You have to select the correct choice as given below. (a) Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation for Statement-1 Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement -1 (c) Statement -1 is true, Statement -2 is false (d) Statement -1 is false, Statement -2 is true Statement -1 The equation 7^(log_7(x^3+1))-x^2=1 has two distinct real roots . Statement -2 a^(log_aN)=N , where agt0 , ane1 and Ngt0

TRUEMAN BIOLOGY-Plant Physiology -ASSERTION AND REASON
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  3. [A] : Nastic movements occur in the directions of stimuls [R] : "Tou...

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  4. [A] : Germinating seeds which store fats as reserve food material are ...

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  5. [A]: Gibberellic acid when added to isolated aleurone layer, induces a...

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  6. [A] : When apical bud is removed, the next axial bud begins to grow ou...

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  7. [A]: Xanthium will not flower if the long dark period is interrupted b...

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  8. [A]: Senescence is induced by the applica- tion of cytokinin in plants...

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  9. Assertion : A correct concentration of auxin and cytokinin is required...

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  10. [A]: The endogenous level of plant hormones is measured by Bioassay te...

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  11. [A] : Bolting of rosette plants is caused by Gibberellins. [R]: Gibb...

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  12. (A]: Cytokinins help in retention of cholorophyll and delayed senescen...

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  13. [A]: Plants hormones are called phytohormones [R]: They increase ra...

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  14. [A] : Senescence occurs in all non meristematic cells. [B]: Meristem...

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  15. Assertion . Senescence is the time when age associated defects are man...

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  16. Assertion: Photosynthetically C(4) plants are less efficient than C(3)...

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  17. [A]: The atmospheric concentration of CO2 at which photosynthesis just...

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  18. [A]: C4 pathway is more efficient that n C3 pathway. [R]: Photorespi...

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  19. Assertion : Photomorphogenetic responses are controlled by the pigment...

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  20. [A] : Some plants flower only in summers & some only in winters. [R]...

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