Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Life Sciences System Physiology Animal Endocrinology and Reproduction
Vitamin D3 (Cholecalciferol) is synthesized in skin cells as a result of irradiation of which substance?
1
7- dehydroxycholesterol
2
7- dehydrocholesterol
3
7- hydrocholesterol
4
7- cholesterol
5
Question Not Attempted