How did gregor mendel contribute to our understanding of inherited traits

Explanation:

The patterns of inheritance observed by Mendel forms the basis of modern genetics

To prove this Mendel did monohybrid cross for all characters and find out that  the phenotypic ratio for all traits in second generation(F2 generation) is 3:1

Random arrangement of paternal and maternal chromosomes on metaphase plate occurs,chromosomes are independent to assort on the metaphase plate at the time of cell division,their arrangement on metaphase plate is random

the animal that would be cutest if scaled down to the size of a cat? elephant

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.