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 11
Describe the difference between sex-linked and autosomal 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 the concept of dosage compensation in mammals.
A man with genotype XHY (normal) and a woman with genotype XHXh (carrier) have a child. What is the probability that their daughter will be a carrier?
A man with hemophilia (XhY) marries a woman who is not a carrier (XHXH). What is the probability that their daughters will be carriers?
A man with normal vision (XCY) and a woman who is color blind (XcXc) have children. What is the probability that their daughters will be carriers?
A woman who is a carrier for an X-linked recessive disorder marries a man who is affected by the disorder. What is the probability that their daughter will be affected?
Which of the following best describes a carrier for an X-linked recessive trait?
(1) A male with one mutant allele
(2) A female with one mutant and one normal allele
(3) A female with two mutant alleles
(4) A male with two mutant alleles
Which of the following best describes the inheritance of Y-linked traits?
(1) Passed from mother to son
(2) Passed from father to all sons
(3) Passed from father to all daughters
(4) Passed from mother to all children
Which of the following genotypes represents a female carrier for hemophilia?
(1) XHXh
(2) XhY
(3) XHY
(4) XHXH
Which of the following is a Y-linked trait?
(1) Red-green color blindness
(2) Hairy ears
(3) Hemophilia
(4) Albinism
Fill in the blank: In birds, the sex chromosomes are designated as ______ for females and ______ for males.
Fill in the blank: In humans, the X chromosome contains about ______ genes, while the Y chromosome contains about ______ genes.
Fill in the blank: The inheritance of traits controlled by genes located on the sex chromosomes is called ______ inheritance.
Fill in the blank: The presence of a Barr body in a cell indicates that the individual is genetically ______.
True or False: A female with two X chromosomes carrying the same recessive allele for a sex-linked disorder will express the disorder.
True or False: A male can be a carrier for an X-linked recessive disorder.
True or False: All daughters of a man with an X-linked dominant disorder will inherit the disorder.
True or False: Females can be affected by X-linked recessive disorders if they inherit two copies of the mutant allele.
