Genetics

Genetics is the study of genes, genetic variation, and heredity in organisms. It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically.

Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time.
He observed that organisms inherit traits by way of discrete "units of inheritance".
This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0

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