Genetic disorders that involve a single-gene trait are characterized by:
A) Multifactorial gene mutations
B) Chromosome rearrangements
C) Mendelian patterns of transmission
D) Abnormal numbers of chromosomes
Ans: C
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Single-gene disorders are characterized by patterns of transmission that follow the Mendelian patterns of inheritance. Multifactorial inheritance involves more than one gene mutation, rearrangement of groups of genes, and uneven numbers of some chromosomes in each cell.
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