Question:

Which hormone supports the process of RBC production as well as regulates the reproductive cycle in females?

Show Hint

Look for the hormone that helps red cell formation and keeps menstrual cycles regular.
Updated On: Nov 12, 2026
  • Thyroxine
  • Adrenaline
  • Calcitonin
  • Estrogen
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The Correct Option is A

Solution and Explanation

Step 1: Understanding the Concept
Some hormones have effects beyond their main role.

Step 2: Thyroxine
Thyroxine from the thyroid gland supports the formation of red blood cells and also helps keep the menstrual cycle regular.

Step 3: Compare the options
Adrenaline is an emergency hormone and calcitonin lowers blood calcium. Oestrogen regulates the female cycle but is not described as supporting RBC production.

Final Answer:
Thyroxine supports RBC production and regulates the female cycle. \[ \boxed{\text{(A) }\text{Thyroxine}} \]
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