NEET BIOLOGY

Detailed explanation-1: -If a male who has an X-linked condition has a daughter, he will always pass on the changed gene to her. This is because males only have one X chromosome and they always pass this on to their daughters.

Detailed explanation-2: -The abnormal gene dominates the gene pair. For an X-linked dominant disorder: If the father carries the abnormal X gene, all of his daughters will inherit the disease and none of his sons will have the disease.

Detailed explanation-3: -In males (who only have one X chromosome), a mutation in the copy of the gene on the single X chromosome causes the condition. Fathers cannot pass X-linked dominant conditions to their sons, but all daughters of affected fathers will be affected with the condition and can pass it on to their children.

Detailed explanation-4: -Fathers cannot pass X-linked recessive conditions to their sons. When a son inherits a mutated gene on the X chromosome from his mother, the genetic condition is more likely to occur. X-linked recessive conditions most often occur in males.

Detailed explanation-5: -If the father passes on an X chromosome, the baby will be genetically female, and if the father passes on a Y chromosome, the baby will be genetically male.