Discussion Ideas - Chapter 19


The nonchemical approach to medical genetics is largely based on the concept of dominant and recessive genes. This chapter presents human genetics from this perspective, along with exceptions, such as incomplete dominance, polygenic inheritance, and multiple alleles. Sex-linked inheritance is also a special case because females are XX, but males are XY.

Relevant research into genetic disorders is an important part of this chapter, and its up-to-date coverage should help students understand the latest breakthroughs, which are reported almost daily. The Health Focus outlines how genetic counseling can be used.

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