NEET Biology Notes PDF 2027 | Class 11 & 12

Hello Friends, I am a  NEET Dropper. Today I'm sharing Complete Notes of principles of Inheritance and Variation Class 12 Biology Chapter 4 *Short Notes +  for NEET - --- ### * 1. Mendel & His Experiments * * Why Pea Plant? *  1. 7 contrasting traits  2. Self-pollinating but cross-pollination possible  3. Short life cycle, large progeny  * Diagram: Mendel’s 7 Contrasting Traits * 1. Seed Shape     → Round (R) vs Wrinkled (r) 2. Seed Color     → Yellow (Y) vs Green (y) 3. Flower Color   → Violet (V) vs White (v) 4. Pod Shape      → Inflated (I) vs Constricted (i) 5. Pod Color      → Green (G) vs Yellow (g) 6. Flower Pos.    → Axial (A) vs Terminal (a) 7. Stem Height    → Tall (T) vs Dwarf (t) * Trick *: *R*ohan *Y*esterday *V*isited *I*ndia *P*ark *F*or *S*ightseeing --- ### * 2. Mendel’s...

*Sexual Reproduction in Flowering Plants - Notes with Diagram* *1. Main Reproductive Organ: Flower*   The flower has male and female parts for sexual reproduction. *Diagram: L.S. of a Flower*         Stigma           | Anther ---|--- Style    |      | Filament  | Ovary --> contains Ovules    |      | Stamen    Carpel/Pistil (Male)    (Female)         Sepals         Petals       Receptacle          |        Pedicel *Label Description:*   - *Stamen*: Male part. Has *Anther* + *Filament*. Anther makes pollen grains. Pollen grain contains male gametes.   - *Carpel/Pistil*: Female part. Has *Stigma, Style, Ovary*. Ovary contains *Ovules*.   - *Ovule*: Has *Embryo sac* inside. Embryo sac = 7-celled, 8-nucleate structure. Contains egg ...

 Hello Friends, I am a  NEET Dropper. Today I'm sharing Complete Notes of Human Reproduction - Class 12 Biology Chapter 2. This is the most scoring chapter in NEET. **NEET PYQ Trend Last 5 Years:** 2022: 4 Questions 2023: 3 Questions   2024: 5 Questions 2025: 3 Questions 2026: 3 Questions Expected **Means 3-5 Questions fixed every year from this chapter.** **NEET 2027 One Shot Topics:** **1. Male Reproductive System** - **Testes**: Produces Sperms + Testosterone hormone - **NCERT Line**: "Testes are situated outside abdominal cavity within scrotum because sperm formation requires 2-2.5°C lower temperature than body" - **Spermatogenesis**: Spermatogonia → Primary spermatocyte → Secondary spermatocyte → Spermatid → Spermatozoa - **Semen**: Sperms + Secretions of Seminal vesicle + Prostate + Bulbourethral gland **2. Female Reproductive System** - **Ovary**: Produces Ovum + Estrogen + Progesterone  - **Oogenesis**: Oogonia → Primary oocyte → Secondary oocyte → Ovum ...