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.
A color-blind woman marries a man with normal vision. What is the probability that their daughters will be color blind? (1) 0% (2) 25% (3) 50% (4) 100%
A man with a Y-linked trait marries a woman without the trait. What is the probability that their daughter will inherit the trait? (1) 0% (2) 25% (3) 50% (4) 100%
A man with hemophilia (an X-linked recessive disorder) marries a woman who is not a carrier. What is the probability that their daughters will be carriers? (1) 0% (2) 25% (3) 50% (4) 100%
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 color-blind woman marries a man with normal vision. What is the probability that their daughters will be color blind? (1) 0% (2) 25% (3) 50% (4) 100%
A man with a Y-linked trait marries a woman without the trait. What is the probability that their daughter will inherit the trait? (1) 0% (2) 25% (3) 50% (4) 100%
A man with hemophilia (an X-linked recessive disorder) marries a woman who is not a carrier. What is the probability that their daughters will be carriers? (1) 0% (2) 25% (3) 50% (4) 100%
A woman who is a carrier for color blindness marries a man with normal vision. What is the probability that their son will be color blind? (1) 0% (2) 25% (3) 50% (4) 100%
Fill in the blank: A female with one normal allele and one allele for an X-linked recessive disorder is called a ______.
Fill in the blank: In humans, the sex chromosomes are designated as ______ for females and ______ for males.
Fill in the blank: The gene for hemophilia is located on the ______ chromosome.
Fill in the blank: The gene for red-green color blindness is located on the ______ chromosome.
True or False: A female can be affected by an X-linked dominant disorder if she inherits the allele from either parent.
True or False: All daughters of a man with an X-linked dominant disorder will inherit the disorder.
True or False: All sons of a man with a Y-linked trait will inherit the trait.
True or False: Females can be affected by X-linked recessive disorders if they inherit two copies of the recessive allele.
