A disorder is inherited by all the daughters of affected males, but by none of his sons. Heterozygous females are affected, and will pass on the trait to half their children, with boys and girls equally affected. What is the mode of inheritance of the trait?

1.autosomal dominant
2.sex-linked recessive
3.autosomal recessive
4.X-linked dominant
5.X-linked recessive
6.mitochondrial inheritance
7.Y-linked inheritance


4

Biology & Microbiology

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