SER এর পূর্ণরুপ হলো- [HSC & Admission]

(ক) Smooth endoplasmic reticell
(খ) Smooth endoplasmic recticulum
(গ) Smooth endoplasmic retibio
(ঘ) Smooth endoplasmic recular

উত্তর-(খ) Smooth endoplasmic recticulum

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