Below is a pedigree of a rare human genetic disease in which stricken individuals are solid-colored. After you decide what kind of inheritance this is (note the grandparents), apply the laws of probability and calculate the probability the offspring of the cousin marriages a) 2 × 3 will have the disease.         1/2     1/4     1/8     1/16     2/3

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.