Question:
Which one of the following hormone functions as a "morphogen" during embryogenesis?
Which one of the following hormone functions as a "morphogen" during embryogenesis?
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Auxin: Morphogen in plant development.
Concentration gradients determine cell fate.
Key role in embryogenesis, root initiation, and vascular patterning.
Concentration gradients determine cell fate.
Key role in embryogenesis, root initiation, and vascular patterning.
Updated On: Sep 1, 2026
- Auxin
- Cytokinin
- Abscisic acid
- Ethylene
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of plant hormones and morphogenesis.
Step 2: Detailed Explanation:
Auxin functions as a morphogen during embryogenesis.
It establishes concentration gradients that determine cell fate and pattern formation.
Auxin gradients are critical for:
- Embryo development.
- Organ formation.
- Vascular differentiation.
Cytokinin (B): Regulates cell division and shoot formation.
Abscisic acid (C): Promotes dormancy and stress tolerance.
Ethylene (D): Promotes fruit ripening and senescence.
Thus, auxin functions as a morphogen.
Step 3: Final Answer:
Thus, auxin functions as a morphogen, which corresponds to option (A).
[0.5cm]
This question tests knowledge of plant hormones and morphogenesis.
Step 2: Detailed Explanation:
Auxin functions as a morphogen during embryogenesis.
It establishes concentration gradients that determine cell fate and pattern formation.
Auxin gradients are critical for:
- Embryo development.
- Organ formation.
- Vascular differentiation.
Cytokinin (B): Regulates cell division and shoot formation.
Abscisic acid (C): Promotes dormancy and stress tolerance.
Ethylene (D): Promotes fruit ripening and senescence.
Thus, auxin functions as a morphogen.
Step 3: Final Answer:
Thus, auxin functions as a morphogen, which corresponds to option (A).
[0.5cm]
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