Sex-Linked Inheritance
Biology ⇒ Genetics and Heredity
Sex-Linked Inheritance starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Sex-Linked Inheritance.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A color-blind woman (XᶜXᶜ) marries a man with normal vision (XᴺY). What is the expected phenotype of their daughters?
A man with hemophilia (XʰY) marries a woman who is not a carrier (XᴴXᴴ). What is the probability that their children will have hemophilia?
A man with normal vision (XᴺY) and a woman who is a carrier for color blindness (XᴺXᶜ) have a son. What is the probability that the son will be color-blind?
A pedigree shows that a trait is only present in males and is passed from father to all sons. What type of inheritance is this?
A woman who is a carrier for color blindness (XᴺXᶜ) marries a color-blind man (XᶜY). What is the probability that their daughter will be color-blind?
A woman who is a carrier for hemophilia (XᴴXʰ) marries a normal man (XᴴY). What is the probability that their son will have hemophilia?
A woman with hemophilia (XʰXʰ) marries a man with normal blood clotting (XᴴY). What is the expected phenotype of their children?
Describe how a pedigree can be used to distinguish between X-linked and autosomal inheritance.
Describe the difference between X-linked dominant and X-linked recessive inheritance.
Describe the inheritance pattern of a Y-linked trait.
Describe the pattern of inheritance for mitochondrial DNA and explain why it is not considered sex-linked.
Explain why a female with one X-linked recessive allele may not show the disorder.
Explain why fathers cannot pass X-linked traits to their sons.
Explain why X-linked recessive disorders are rare in females.
Explain why X-linked traits can sometimes show mosaic expression in females.
Explain why Y-linked traits do not skip generations.
Which chromosome pair determines the sex of a human individual?
