The term "heredity" describes how features are passed down from one generation to the next, hence option D is correct.
The principle of paired factors is the first of Mendel's four postulates and principles of heredity, the dominance principle.
Mendel's first law of Inheritance, also known as the law of segregation or the law of purity of gametes, and Mendel's second law of Inheritance, also known as the law of independent assortment.
Therefore, the father of genetics is said to be Gregor Johann Mendel, He was the first to demonstrate how qualities are passed down from one generation to the next, hence option D is correct.
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