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Sex Linkage Sex Linkage Sex linkage applies to genes that are located on the sex chromosomes. These genes are considered sex-linked because their expression and inheritance patterns differ between males and females. While sex linkage is not the same as genetic linkage , sex-linked genes can be genetically linked see bottom of page. Sex Chromosomes Sex chromosomes determine whether an individual is male or female. In humans and other mammals, the sex chromosomes are X and Y. Females have two X chromosomes, and males have an X and a Y. Non-sex chromosomes are also called autosomes.Sex linked genes are genes that are in the sex chromosomes and that are therefore inherited differently between males and females. In mammals, where the. For other X-linked recessive diseases for which we still do not know the causal genetic defect, parents instead rely on identification of the sex of the embryo (i.e., . Human X and Y chromosomes determine the biological sex of a person, with XX . X-linked genes have different inheritance patterns than genes on non-sex...the end of the story look at the video above ↑ ↑ ↑

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