Скачать или смотреть CBSE GRADE 12 SEX DETERMINATION, HONEYBEE, INSECT, BIRD, HUMAN Principles of Inheritance 8

Sex determination is one of the most fascinating concepts in genetics and an important chapter in Class 12 Biology (CBSE/NCERT). In this video, we explain the genetic and chromosomal mechanisms of sex determination across different organisms, including insects, birds, humans, and honey bees, in a simple and easy-to-understand way.

You will learn how XO and XY mechanisms operate in insects and humans, why males and females have different sex chromosomes, and how the sperm or egg determines the sex of the offspring. The video also covers female heterogamety in birds (ZW–ZZ system) and explains why the egg is responsible for sex determination in birds.

We also discuss the haplodiploid sex determination system in honey bees, where fertilised eggs develop into females and unfertilised eggs develop into males by parthenogenesis. Special features such as haploid males, diploid females, and mitotic sperm formation are explained with clear logic and exam-oriented points.

This video is ideal for:
• Class 12 CBSE Biology students
• NEET & competitive exam aspirants
• Conceptual clarity and quick revision
• Understanding common exam questions and diagrams

Watch till the end for easy comparisons, memory tricks, and exam-focused explanations that will help you score better in Biology.

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