Assertion : Photomodulation of flowering is a phytochrome regulated process.

Reason : Active form of phytochrome directly induces floral induction in shoot bud.

If both assertion and reason are true and reason is correct explanation of assertion.

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If both assertion and reason are true but reason is not the correct explanation of assertion.

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If assertion is true but reason is false.

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If both assertion and reason are false.

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Solution

The correct option is C If assertion is true but reason is false.
Photo modulation of flowering is a phytochrome regulated process. Phytochrome is a protein pigment which occurs in two interconverlible form Pr (which absorbs red light) and Pfr (which absorbs far-red light). When Pr molecules are exposed to red light, most of them absorb it and converted to Pfr. This causes floral induction in the shoot.

Therefore, assertion is true but reason is false.

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Similar questions

(P_{f r})

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

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