some families, hairy ecar rims have been shown to be transmitted exclusively from fathers to sons. Inheritance of an X-linked dominant disorder XA/X X4/X X4/Y FIGURE 2-31 AI the daughters of a male expressing an X-Inked dominant phenotype will show the phenotype. Females heterozygous for an X-linked dominant allele will pass the condition on to half their sons and daughters. II XA/X XA/Y

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A: Genes Genes are the sequence in the DNA that code for perticular enzyme or protein.

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Q: *

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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.