How are the alleles for sex-linked traits inherited? A. They are passed from the Y chromosome in parents to the X chromosome in offspring.
B. They are passed from the X chromosome in parents to the XY chromosome in offspring.
C. They are passed from parents to offspring on the X and Y chromosomes.
D. They are passed from any chromosome in the parents to the X or Y chromosome in the offspring.
The correct answer is C. They are passed from parents to offspring on the X and Y chromosomes.
Explanation: Sex-linked traits are typically associated with genes found on the X or Y chromosomes. Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX). Traits linked to the X chromosome can be inherited differently between the sexes, as males will inherit their single X from their mother and their Y from their father, while females inherit one X from each parent. This unique inheritance pattern leads to specific expressions of traits in males and females. Always feel free to check for further assistance on more complex topics!