47. Which of the following DONOT occur during seed development?

(1) Accumulation of storage proteins

(2) Synthesis of LEA proteins

(3) Desiccation
(4) Synthesis of Gibberellic acid

Correct answer: (4) Synthesis of Gibberellic acid

Explanation:

• During seed development, accumulation of storage proteins occurs to provide nutrients for the future seedling.

• Synthesis of LEA proteins (Late Embryogenesis Abundant proteins) also occurs, which help seeds acquire desiccation tolerance.

• Desiccation happens as seeds lose water to reach a dormant state, essential for longevity and viability.

• However, synthesis of gibberellic acid does not primarily occur during seed development; gibberellins mainly promote seed germination and growth after seed maturation.

Option-wise:

• (1) Accumulation of storage proteins — occurs.

• (2) Synthesis of LEA proteins — occurs.

• (3) Desiccation — occurs.

• (4) Synthesis of gibberellic acid — does not occur during seed development, mainly active in germination.

  Seed development involves nutrient storage and protective mechanisms like LEA protein synthesis and water loss for dormancy. Gibberellic acid synthesis, however, is primarily linked to activating seed germination, not seed maturation.