AI se padhiye वंशागति और विविधता के सिद्धांत | Inheritance & Variation ONE SHOT | For All Exams 2026

वंशागति और विविधता के सिद्धांत (Principles of Inheritance and Variation) का पूरा ONE SHOT — Class 12 Biology Chapter 4. मेंडल के नियम, Monohybrid व Dihybrid Cross (3:1, 9:3:3:1), Incomplete Dominance, Codominance, ABO Blood Group, Linkage व Morgan, Sex Determination, Genetic Disorders (Down Syndrome, Haemophilia, Sickle Cell) — sab kuch ek video me. Bihar Board, NEET, CBSE aur sabhi exams ke liye. Affairs Index par roz Class 12 Biology ke 1hr+ DEEP videos — Subscribe karein! 📌 Chapters: 0:00:00 - Child resembling parents: eye colour, hair texture and height passed a 0:05:02 - Dominant allele T expressed even in heterozygous condition 0:15:02 - AB crossed with AB gives A, B and AB but never O: no i allele is prese 0:20:01 - PYQ 7: the best example of multiple allelism is the ABO blood group 0:25:02 - Phenotypic ratio 9:3:3:1 0:25:08 - Genotypic ratio 1:2:1:2:4:2:1:2:1: nine genotypes 0:30:02 - A test cross reveals the genotype of a dominant phenotype for two gene 0:35:06 - Social message: blaming the mother for a girl child is scientifically 0:40:00 - Point mutation by substitution: sickle-cell GAG to GUG, glutamic acid 0:45:02 - Trap 1: independent assortment fails on linked genes, it is not univer 0:50:00 - The royal disease: Queen Victoria was a carrier and it spread through 0:50:06 - The father gives his X only to daughters and his Y only to sons: the c 0:55:07 - Three disorders compared: sickle-cell is a structure defect, thalassem 1:00:04 - Maternal age risk: 1 in 1500 at age 20, 1 in 30 at age 45 #Vanshagati #PrinciplesOfInheritance #Class12Biology #NEET2026 #BiharBoard #AISePadhiye #BiologyOneShot