Learning Paths
Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Chapter 22Contains Standard content
Principles of Inheritance and Variation
Why do you look like your parents, and yet not exactly like either of them? This chapter follows a trait from parent to child. You start with Mendel and his peas and learn to predict the results of a cross. Then you meet the chromosomes that carry the genes, linkage, sex determination and the traits tied to the X chromosome. You end with mutations and the genetic disorders that follow from them. Python counts every cross exactly, with fractions, so that no ratio is guessed. It serves the Indian syllabus (NCERT, NEET) and the matching topic of A-Level, IB and AP. A fourth course goes deeper, for readers who want the level of A-Level Biology, IB Higher Level and the Olympiad.
4 courses
