Questions: Individuals who express which genetic feature, female or male, are more likely to experience X -linked diseases? Females Equally likely for females and males Males Occur rarely in both females and males

The answer is: Males

Explanation for each option:

• Females: Females have two X chromosomes, so if one X chromosome carries a recessive gene for an X-linked disease, the other X chromosome can often compensate with a healthy gene. This makes females less likely to express X-linked diseases unless they inherit two copies of the recessive gene (one from each parent), which is less common.

• Equally likely for females and males: This is incorrect because males and females have different probabilities of expressing X-linked diseases due to their different chromosomal compositions (males have one X and one Y chromosome, while females have two X chromosomes).

• Males: Males are more likely to experience X-linked diseases because they have only one X chromosome. If that X chromosome carries a recessive gene for an X-linked disease, there is no second X chromosome to provide a healthy copy of the gene, so the disease is expressed.

• Occur rarely in both females and males: This is incorrect because X-linked diseases are not rare in males due to the reasons mentioned above.

In summary, males are more likely to experience X-linked diseases due to their single X chromosome, which means any recessive gene on that chromosome will be expressed.