Sex-Linked Inheritance
Biology ⇒ Genetics and Heredity
Sex-Linked Inheritance starts at 10 and continues till grade 12.
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See sample questions for grade 10
A man with normal vision and a woman who is a carrier for color blindness have a daughter. What is the probability that the daughter is color blind?
A pedigree shows a trait that appears only in males and is passed from father to son in every generation. What type of inheritance is this?
A woman who is homozygous for a normal allele on the X chromosome marries a man with color blindness. What is the probability that their children will be color blind?
Describe how a Y-linked trait is inherited in a family.
Describe the difference between autosomal and sex-linked inheritance.
Describe the difference between X-linked dominant and X-linked recessive inheritance.
Describe the inheritance pattern of X-linked recessive traits in a pedigree.
Explain why a male with a recessive allele on the X chromosome will express the trait.
Explain why fathers cannot pass X-linked traits to their sons.
Explain why X-linked recessive disorders are rare in females.
Explain why Y-linked traits are only found in males.
What is meant by sex-linked inheritance?
A woman who is heterozygous for an X-linked recessive disorder marries a man who is affected by the same disorder. What is the probability that their children will be affected if they have one son and one daughter?
Describe how a mutation in a gene located on the Y chromosome would be inherited in a family. Would females ever be affected? Explain your answer.
Explain why X-linked dominant disorders often show a different pattern of inheritance in males compared to females.
If a gene for a certain trait is located in the pseudoautosomal region of the X and Y chromosomes, how will its inheritance pattern differ from typical sex-linked inheritance?
