25 Feb 2026 Class 12 Biology Board: Key Topics & Questions 🔥

25 Feb 2026 Biology Board Paper 🔥 Most Evergreen Topics | Class 12 Maharashtra Board Important Questions

Class 12th Biology Maharashtra Board 25 February 2026 exam ke liye is video me maine most evergreen aur baar-baar repeat hone wale topics cover kiye hain.
Agar aapko board exam me high score lana hai to ye important questions aur repeated concepts zaroor prepare karein.
Is video me cover kiya gaya: • Most repeated 3/4/5 mark questions
• Diagrams based important topics
• Genetic problems & numericals
• Biotechnology ke sure shot questions
• Human Health & Reproduction ke expected questions
• PYQ based preparation strategy
Ye sab topics Maharashtra Board ke previous year papers aur marking scheme ke analysis par based hain.
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🔥 Most Evergreen & Repeated Topics (Biology)
1️⃣ Reproduction
Human Reproduction (Diagram + Hormonal control)
Microsporogenesis & Megasporogenesis
Menstrual cycle
IVF, ZIFT, GIFT differences
2️⃣ Genetics & Evolution
Mendelian Inheritance numericals
Monohybrid & Dihybrid cross
Pedigree analysis
DNA replication (Diagram)
Transcription & Translation
Hardy Weinberg principle
3️⃣ Biotechnology
Recombinant DNA Technology steps
Restriction enzymes & Vectors
PCR
Bt Cotton
Human insulin production
4️⃣ Human Health & Disease
AIDS (HIV structure)
Cancer causes
Vaccination types
Immunity (Active vs Passive)
5️⃣ Ecology
Ecological pyramids
Food chain & food web
Biodiversity conservation
Environmental issues

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