Science Biology Notes | Class 12 — Chapter 1: Sexual reproduction in flowering plants — Pulse By Anubhav

You will get here Science Biology class 12 CBSE notes Chapter 1: Sexual reproduction in flowering plants. You can connect with us for every important update related to class 12.

Science Biology is a very important subject for you because it will help you increase your percentage as well as it is an important subject for your medical entrance exam. You can score high marks in this subject by studying notes and practicing MCQs. In this post, we will cover Chapter 1: Sexual reproduction in flowering plants.

Also Read- Moushumi Chatterjee: Married at 15, Mother at 17 — The Actress Who Even Took On Raaj Kumar

Key Content Of Chapter 1 Sexual reproduction in flowering plants

• Sexual reproduction in flowering plants involves fusion of male and female gametes.
• Flower is the main reproductive organ of plants.
• It has two parts: Androecium (male) and Gynoecium (female).
• Pollen grains (male gametophyte) are formed in anther by microsporogenesis.
• Embryo sac (female gametophyte) is formed inside ovule by megasporogenesis.
• Pollination = transfer of pollen from anther to stigma.
• Types of pollination:
• Autogamy (same flower)
• Geitonogamy (same plant)
• Xenogamy (different plant)
• Pollination agents: wind, water, insects, animals.
• Pollen germinates on stigma and forms pollen tube.
• Male gametes travel through pollen tube to ovule.
• Double fertilisation occurs:
• One gamete + egg → Zygote
• One gamete + polar nuclei → Endosperm
• After fertilisation:
• Ovule → Seed
• Ovary → Fruit
• Endosperm provides nutrition to embryo.
• Embryo develops into new plant.
• Special processes:
• Apomixis → seed formation without fertilisation
• Polyembryony → more than one embryo in a seed

👉 Flow: Flower → Pollination → Fertilisation → Seed → Fruit

Also Read- Class 12 Physical Education Notes (Chapter Wise) — CBSE Guide

Class 12 Science Biology Chapter 1: Sexual reproduction in flowering plants Notes

Sexual Reproduction in Flowering Plants

Class 12 Biology Chapter 1 — Pulse by Anubhav

Complete notes, NCERT book PDF aur updated syllabus yahan se easily access karo. Yeh chapter flower structure, pollination, double fertilisation aur seed formation ko detail me explain karta hai — exam ke liye super important 🔥

Class 12 Biology Chapter 1 Sexual reproduction in flowering plants MCQs

Sexual Reproduction in Flowering Plants (MCQs) — Pulse by Anubhav

Also Read:- Shruti Haasan Profile: Age, Height, Facts & Big Update on Peddi Song with Ram Charan

FAQs About Sexual reproduction in flowering plants

FAQs About Sexual Reproduction in Floowering Plants — Pulse by Anubhav

What is double fertilisation?

SexualReproductionInFloweringPlants #Class12Biology #BiologyNotes #NEETBiology #CBSEClass12 #BiologyChapter1 #PlantReproduction #FloweringPlants #Pollination #DoubleFertilisation #EmbryoSac #PollenGrain #Microsporogenesis #Megasporogenesis #Apomixis #Polyembryony #BiologyStudy #NEETPreparation #BoardExam2026 #StudyNotes #PulseByAnubhav 🚀

Originally published at https://pulsebyanubhav.in on April 26, 2026.