Biology - Principles of Inheritance and Variation Question with Solution | TestHub

Complete sex linkage refers to the inheritance of genes located on the non-homologous regions of the X and Y chromosomes, which do not undergo crossing over. Examples of completely sex-linked traits in humans include red-green colour blindness, haemophilia, and myopia.

Incomplete sex linkage involves genes located on the homologous regions of the X and Y chromosomes, which can undergo crossing over. Examples of incompletely sex-linked traits include total colour blindness, retinitis pigmentosa, and nephritis.

Therefore, nephritis is an example of incomplete sex linkage, not complete sex linkage.

Answer: Nephritis