Genetic Disorders
Biology ⇒ Genetics and Heredity
Genetic Disorders starts at 9 and continues till grade 12.
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See sample questions for grade 10
Describe one symptom of cystic fibrosis.
Describe the main difference between a genetic disorder and an infectious disease.
Describe the role of genetic testing in the management of genetic disorders.
Describe what is meant by a carrier in the context of genetic disorders.
Explain the difference between autosomal dominant and autosomal recessive inheritance patterns.
Explain why consanguineous marriages (marriage between close relatives) increase the risk of autosomal recessive disorders.
A couple are both carriers for cystic fibrosis (autosomal recessive). What is the probability that their child will have cystic fibrosis?
(1) 0%
(2) 25%
(3) 50%
(4) 75%
A woman who is a carrier for hemophilia (X-linked recessive) marries a man who does not have hemophilia. What is the probability that their son will have hemophilia?
(1) 0%
(2) 25%
(3) 50%
(4) 100%
A couple are both carriers for cystic fibrosis (autosomal recessive). What is the probability that their child will have cystic fibrosis?
(1) 0%
(2) 25%
(3) 50%
(4) 75%
A woman who is a carrier for hemophilia (X-linked recessive) marries a man who does not have hemophilia. What is the probability that their son will have hemophilia?
(1) 0%
(2) 25%
(3) 50%
(4) 100%
Which genetic disorder is characterized by the inability of blood to clot properly?
(1) Sickle cell anemia
(2) Hemophilia
(3) Cystic fibrosis
(4) Down syndrome
Which of the following genetic disorders is caused by a trisomy?
(1) Turner syndrome
(2) Down syndrome
(3) Hemophilia
(4) Cystic fibrosis
Fill in the blank: Down syndrome is caused by the presence of an extra copy of chromosome ____.
Fill in the blank: The gene responsible for cystic fibrosis is located on chromosome ____.
Fill in the blank: The genetic disorder ________ is caused by a mutation in the gene responsible for producing clotting factor VIII.
Fill in the blank: The genetic disorder ________ is caused by a mutation in the gene that codes for the enzyme phenylalanine hydroxylase.
True or False: All chromosomal disorders are inherited from parents.
True or False: All genetic disorders are inherited from parents.
True or False: All mutations in DNA result in genetic disorders.
True or False: Cystic fibrosis is inherited in an autosomal dominant manner.
