Comparison between X-Linked Traits and Y- Linked Traits

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

 

Let me share with you a comparison between X-Linked Traits and Y- Linked Traits.

 

Aspect ย ย ย  X-Linked Traits ย ย ย ย ย ย ย  Y-Linked Traits
Genes location on chromosome Genes are located on the X chromosome. Genes are located on the Y chromosome.
Inheritance pattern Typically, X-linked traits are recessive or dominant. Y-linked traits are usually dominant.
Affected individuals ยทย ย ย ย ย ย ย  Both males and females can carry and express X-linked traits.

ยทย ย ย ย ย ย ย  Males are more often affected due to hemizygosity.

ยทย ย ย ย ย ย ย  Only males (XY individuals) express Y-linked traits.

ยทย ย ย ย ย ย ย  Females (XX) do not carry these traits.

Mode of transmission ยทย ย ย ย ย ย ย  Mothers can pass X-linked traits to both sons and daughters.

ยทย ย ย ย ย ย ย  Fathers pass the Y chromosome to their sons.

ยทย ย ย ย ย ย ย  Y-linked traits are transmitted exclusively from fathers to their sons.
Examples ยทย ย ย ย ย ย ย  Hemophilia

ยทย ย ย ย ย ย ย  Red-green color blindness

ยทย ย ย ย ย ย ย  Duchenne muscular dystrophy

ยทย ย ย ย ย ย ย  Hemophilia

ยทย ย ย ย ย ย ย  Male pattern baldness

ยทย ย ย ย ย ย ย  Y-linked congenital deafness

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