Who gave us the fundamental genetic principle of segregation?

The person who gave us the genetic principle of segregation was a monk called Gregor Mendae

Explanation:

One of the principles he made is called Mendels law of segregation, which states that the allele pairs separate or segregate during gamate formation. ( They also randomly unite at fertilization)

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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.