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Explore a pedigree diagram of Family KE showing inheritance of speech and language impairment. Understand genetic factors impacting communication abilities in this family through the diagram provided in Fisher et al.'s (1998) study.
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Figure 1 Pedigree diagram of family KE. Squares represent males; circles represent females. A diagonal line indicates that the individual is deceased. Family members with speech and language impairment are shaded. Asterisks indicate those individuals who were unavailable for linkage analysis. From Fisher et al. (1998) c° Nature America Inc.