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  1. Proximal and distal convoluted tubules are parts of
    1. Seminiferous tubules
    2. Nephron
    3. Oviduct
    4. Vas deferens
Correct Option: B

Nephron is the excretory unit of human excretory system. Each nephron has a Bowman’s Capsule, a Proximal Convoluted Tubule (PCT), Loop of Henle (Descending & Ascending limbs) and Distal Convoluted Tubule (DCT) which then enter into collecting duct.



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