OBJECTIVE LIFE SCIENCE
DEVELOPMENTAL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This is a hormone that regulates dormancy of a plant and stomata closure in the leaves.
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Abscisic acid
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Auxin
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Cytokinin
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Ethylene
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Explanation:
Detailed explanation-1: -Abscisic acid (ABA) is a stress hormone that accumulates under different abiotic and biotic stresses. A typical effect of ABA on leaves is to reduce transpirational water loss by closing stomata and parallelly defend against microbes by restricting their entry through stomatal pores.
Detailed explanation-2: -Abscisic acid (ABA) is an important phytohormone regulating plant growth, development, and stress responses.
Detailed explanation-3: -Abscisic acid (ABA) is the sole plant hormone known to maintain seed dormancy; it acts through a gene expression network involving the transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3).
There is 1 question to complete.