The hormone responsible for the development of secondary sexual characteristics in females is: MCQ with Answer and Explanation

The hormone responsible for the development of secondary sexual characteristics in females is:
A. Estrogen
B. Prolactin
C. Testosterone
D. Progesterone
Answer: Option A
Solution (By JKSSB Mock Tests)
Estrogen, secreted by the developing ovarian follicles, promotes the development of female secondary sexual characteristics such as breast development, widening of hips, and distribution of body fat. Testosterone is the male sex hormone. Progesterone prepares the uterus for pregnancy, and prolactin stimulates milk production.

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Which of the following is a macronutrient for plants?
A. Iron
B. Copper
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Correct Answer: Option C


Explanation:
Phosphorus is a primary macronutrient (along with nitrogen and potassium) required in relatively large amounts for nucleic acids, ATP, and phospholipids. Iron, zinc, and copper are micronutrients needed in trace amounts. Macronutrients include C, H, O, N, P, K, Ca, Mg, S. Micronutrients function as enzyme cofactors.

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The fluid that accumulates in tissues causing edema when lymphatic drainage is impaired is:
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Correct Answer: Option D


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Which of the following bacterial diseases is transmitted through the bite of an infected rat flea (Xenopsylla cheopis)?
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Correct Answer: Option C


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