The following pedigree describes the inheritance of Lesch-Nyhan syndrome, an X-linked recessive disease. Affected individuals are shaded. What is the probability that the indicated child (IV.1) will be affected by Lesch-Nyhan syndrome? Answer in fraction form; no additional words. Example: 1/4

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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.