Genetic Disorders
True or False: Some genetic disorders are caused by mutations in the DNA of genes.
What is true.
True or False: A shaded square represents a female with a trait?
What is false. A shaded square represents a male with a trait.
True or False: Years ago, doctors only used Punnett squares and pedigrees to help them predict whether a child might have a genetic disorder.
What is true.
True or False: A genetic disorder is an abnormal condition that a person inherits through genes or chromosomes.
What is true.
True or False: When looking at a pedigree, a half-shaded circle means the female has the trait.
What is false. The half-shaded circle means the female is a carrier.
True or False: Cystic fibrosis is a genetic disorder in which the body produces abnormally thin mucus in the lungs and intestines.
What is false. The body produces abnormally thick mucus in the lungs and intestines.
True or False: A half-shaded circle represents a female carrier.
What is true.
True or False: Today, doctors only use Punnett squares and pedigrees to help them predict whether a child migth have a gentetic disorder.
What is false. Toda, doctors use tools such as karyotypes.
True or False: A Punnett square is a chart or family tree that tracks which member of a family have a particular trait.
What is false. A pedigree is a chart or family tree that track which member of a family have a particular trait.
True or False: Only females can be carriers of albinism.
What is false. Both males and females can be carriers of albinism.
A person with one sickle-cells allele will produce both normal hemoglobin and abnormal hemoglobin. This person usually will or will NOT have symptoms of the disease?
What is will NOT have symptoms of the disease. A person with two sickle-cell alleles will have the disease.
What does a geneticist use to trace the inheritance of traits.
What is a pedigree.
How does a doctor detect Down syndrome?
What is a doctor examines the chromosomes from a person's cells.
What is a karyotype?
What is a picture of all the chromosomes in a cell.
Why is hemophilia dangerous?
What is they have the danger of having internal bleeding from small bumps and bruises.
What is hemophilia?
What is a genetic disorder in which a person's blood clots very slowly or not at all.
What does a circle or square that is not shaded indicate?
What is that a person neither has the trait nor is a carrier.
Who might couples see if they have a family history of a genetic disorders?
Who is a genetic counselor.
Who typically uses karyotypes and why?
Who are doctors. To examine chromosomes from a person's cells.
What causes cystic fibrosis?
What is there is a recessive allele on one chromosome.
Describe the chromosomes of an individual with Down syndrome.
What is there is an extra copy of chromosome 21, meaning it has three of that chromosome instead of two.
What types of traits can be traced using a pedigree.
What are ordinary traits such as a widow's peak, or genetic disorders, such as cystic fibrosis.
Give two examples of how people with some disorders get the medical help they need.
What are through medical care, education, job training, and other methods.
What three tools do genetic counselors typically use?
What are karyotypes, pedigree charts, and Punnett squares.
What do people with sickle-cell disease need to take to help their bodies manufacture red blood cells.
What is folic acid and vitamins.