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Primary precursor of I.A.A is :-
  • a)
    Phenyl alanine
  • b)
    Tyrosine
  • c)
    Tryptophan
  • d)
    Leucin
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Primary precursor of I.A.A is :-a)Phenyl alanineb)Tyrosinec)Tryptophan...
I.A.A. is auxin. The precursor of auxin is tryptophan and Zn.
 
Presumptive pathways of IAA biosynthesis from tryptophan:
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Primary precursor of I.A.A is :-a)Phenyl alanineb)Tyrosinec)Tryptophan...
I.A.A. is auxin. The precursor of auxin is tryptophan and Zn. The precursor of cytokinine is Adenine and its derivatives. The precursor of giberallin is Acetyl Co - A. The precursor of ethylene is methionine. The precursor of ABA is violaxanthin .
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Primary precursor of I.A.A is :-a)Phenyl alanineb)Tyrosinec)Tryptophan...
Indole-3-acetic acid (IAA), the main naturally occurring auxin, is essential for almost every aspect of plant growth and development. However, only recently have studies finally established the first complete auxin biosynthesis pathway that converts tryptophan (Trp) to IAA in plants. Trp is first converted to indole-3-pyruvate (IPA) by the TAA family of amino transferases and subsequently IAA is produced from IPA by the YUC family of flavin monooxygenases. The two-step conversion of Trp to IAA is the main auxin biosynthesis pathway that plays an essential role in many developmental processes.
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Primary precursor of I.A.A is :-a)Phenyl alanineb)Tyrosinec)Tryptophand)LeucinCorrect answer is option 'C'. Can you explain this answer?
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