Which steroid is used for transformation : -

95 2002 AIPMT BiomoleculesLipids: Steroids Hard
Which steroid is used for transformation : -
A Cortisol
B Cholesterol
C Testosterone
D Progesterone

Detailed Solution

Cholesterol is the parent steroid from which the body forms (transforms into) all the other steroids.
It is converted into steroid hormones (cortisol, aldosterone, testosterone, estrogen and progesterone), bile acids and vitamin D.
So cholesterol is the steroid used as the starting material for these transformations. (The question is worded loosely; it refers to steroid transformation, not to bacterial transformation.)
So, as per the answer key, the steroid used for transformation is cholesterol.

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