By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

NDA 2 2025 GAT, question 137

Topic: Biology

Q137

Iodized salt is a vital part of our diet as it is essential for the synthesis of

  1. (a) Estrogen
  2. (b) ThyroxinCorrect answer
  3. (c) Insulin
  4. (d) Adrenalin

Solution.

Answer: (b) Thyroxin

  1. Iodine is an essential component of the thyroid hormones, including thyroxine (T₄).
  2. Iodised salt supplies dietary iodine for their synthesis; the other listed hormones do not require iodine as part of their molecular structure.