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In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..

Genetic Mutations
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This tutorial is a continuation of the first lesson on chromosomal mutation. Here, find out the chromosomal aberrations ..

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Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Origins of Life on Earth
Origins of Life on Earth

Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..