24 During germination of seeds, after imbibition of water first step would be
(1) Mobilization of reserve food
(2) Transcription of specific genes
(3) Cell division
(4)  Embryo differentiation

Correct answer: (2) Transcription of specific genes

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Explanation of each option

(1) Mobilization of reserve food

• Mobilization of food reserves is a key step in germination, but it occurs after gene transcription and enzyme synthesis are initiated by the imbibed seed.

• Without activation of specific genes encoding hydrolytic enzymes, reserves cannot be mobilized.

(2) Transcription of specific genes – Correct as the first metabolic/biochemical step after imbibition

• After imbibition (water uptake), the seed resumes metabolic activity including transcription of genes coding for enzymes (amylases, proteases) and growth regulators essential for germination progression.

• This step activates synthesis of enzymes needed to break down stored nutrients and support embryo growth.

(3) Cell division

• Cell division occurs later during seedling growth after the reserves are mobilized and metabolism is reactivated.

(4) Embryo differentiation

• Embryo differentiation continues from the seed development stage and is not the immediate first event post imbibition during germination.