$A$: Phytochrome,a protein,has a regulatory function.
$R$: Various morphogenetic processes are regulated by it.

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

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$(C)$ Which plant hormone can replace the cold treatment?

Vernalization increases the resistance of plants for diseases caused by . . . . . . .

Which of the following pigments absorbs red and far-red light?

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