How Inheritance Works: From Mendel’s Peas to Modern Genetics

The Peas That Started It All: In the 1800s, Gregor Mendel’s pea plant experiments revealed how traits pass from parents to offspring.
The Birth of Genetic Science: Mendel discovered that traits are controlled by invisible “factors”—what we now call genes.
Dominant vs. Recessive: Some traits, like purple flowers, overpower others, while recessive ones quietly wait for their match.
The Punnett Square in Action: Mendel’s math still predicts how traits combine—showing the power of probability in heredity.
DNA Takes the Stage: A century later, scientists discovered that genes are made of DNA—the molecule that carries life’s code.
From Peas to People: The same inheritance rules apply to humans, shaping everything from eye color to blood type.
Crossing Over Adds Variety: During reproduction, chromosomes swap pieces of DNA—mixing parental traits into endless combinations.
Beyond Simple Traits: Modern genetics shows that many traits result from multiple genes and environmental influences.
From Mendel to Medicine: Understanding inheritance now helps doctors trace genetic diseases and personalize treatments.
The Legacy of a Monk’s Garden: Mendel’s humble pea plants planted the seeds of modern biology—proving that big ideas can grow from small experiments.