 What are living things made of? You probably know it's cell, but what are they made of? What's happening inside them that makes them so alive? How are your cells different than that of trees or those of dogs? And how do they make perfect copies of themselves? And how do they join together to give us such diverse types of organs like skin, the bone, or the heart? If these questions fascinate you, then join me in this mini course where we'll unravel all these mysteries. This mini course has four units that cover the essential topics of class 11th and 12th CBSE biology. We first start with cells and then look into the different biomolecules that keeps these cells alive and then see how these cells join together to give us different kinds of tissues. And finally, we go into the DNA to understand how they make perfect copies of themselves. And inside each unit you have videos to give you instruction and exercises where you can practice different concepts separately. And then you have quizzes and unit tests that jumble all the questions up together to give you perfect mastery of this unit. And then once you've mastered all the units, you can take a course challenge that jumbles all the questions to give you complete mastery over the course. So it's exciting, but at the same time a rigorous course to ensure that you strengthen your foundations. If you're excited, let's begin.