Скачать или смотреть Biotechnology - Principles & Processes 🔬| NCERT Class 12th Biology Line By Line 📝|NEET 2026💯|Part-7🎯

📚 Biotechnology: Principles & Processes – NCERT Line by Line (Class 12 Biology)
🎯 Target: NEET 2026
📌 Part 7 – Cloning Vector

Is video mein hum detail mein samjhenge ki cloning vector kya hota hai aur kaise Plasmid aur Bacteriophage use kiye jaate hain as cloning vectors 🧬


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🔬 Sabse Pehle – Cloning Vector ka Concept

✔ Agar plasmid ka copy number high hoga ➝ foreign DNA ka copy number bhi high hoga
✔ High expression ke liye high copy number vector choose karna zaroori hai
✔ Gene of interest ka replication directly depend karta hai vector ke features par


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⭐ Feature 1: Origin of Replication (ori)

🔹 DNA ka special sequence jahan se replication start hota hai
🔹 Foreign DNA ko replicate hone ke liye ori se linked hona zaroori hai
🔹 ori control karta hai linked DNA ka copy number
🔹 High copy number chahiye? ➝ High copy number ori select karo

Ye concept direct NEET question ban sakta hai ⚠️


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⭐ Feature 2: Selectable Marker

🔬 Transformation = Recombinant DNA ko bacteria mein introduce karna

Har bacteria naturally resistant nahi hota antibiotics jaise:
💊 Ampicillin
💊 Tetracycline
💊 Chloramphenicol
💊 Kanamycin

Agar vector ke paas antibiotic resistance gene hoga ➝
Toh sirf wahi bacteria grow karega jisme recombinant DNA enter hua hai 🔥

Isi tarah:
✔ Transformants ko non‑transformants se separate karte hain
✔ Antibiotic resistance gene acts as Selectable Marker


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⚠️ Important:
Is video mein humne 2 major features detail mein cover kiye hain:
1️⃣ Origin of Replication
2️⃣ Selectable Marker

(Cloning Site/Recognition Site next part mein cover hoga.)


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🎯 Ye video un students ke liye hai jo sirf ratna nahi, samajh kar padhna chahte hain.
NCERT wording + Concept clarity + NEET perspective = Smart Preparation 🔥

Agar aap serious NEET aspirant ho, to ye topic strong karna compulsory hai 💪
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