Answer:
Given condition will lead to the Acetylation and activation of the FLC gene which will help in encoding the repressor protein and preventing the expression of Flowering Gene expression.
Explanation:
According to the question,
Extended cold weather → causes Histone deacetylation of the FLC gene.
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When the FLC gene is deacetylated, this condition silences the FLC gene.
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The FLC gene encodes a repressor that prevents the expression of flowering genes. Silenced FLC gene won't be able to encode the repressor protein, therefore, the Flowering gene will be expressed.
If, the weather in winter is unusually warm then → the absence of extended cold temperature
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Histone of the FLC gene will remain Acetylated thus the FLC gene will be activated.
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Activated the FLC gene will encode the Repressor protein which will prevent the expression of the Flowering gene.
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No Blossom
