1. 1/7/15 Mr. Faia 6 th Grade Science

2.  Genetic disorder is an abnormal condition that a person inherits through the genes or chromosomes

3.  Genetic disorders are caused by a mutation in a person’s DNA

4.  Genetic disorder in which the body produces an abnormally thick mucus  It is produced in the lung and intestines

5.  How does the mucus affect the lungs?  How does the mucus affect the intestines?  What else can be caused by the mucus?

6.  The mutation is carried on a recessive allele  Mostly in ancestors from Northern Europe  What are the medical treatments?

7.  Genetic disorder that affects the blood  Affects production of hemoglobin  What does hemoglobin do?

8.  What happens when oxygen levels in blood are low?  What happens to the blood cells?

9.  Most common in people of African ancestry  What type of allele is the trait?  What are the medical treatments?

10.  Genetic disorder that affects the blood  Person’s blood clots slowly or not at all.  What are the dangers of this?

11.  Caused by a recessive allele on the X chromosome  Who is more likely to be affected by hemophilia?

12.  What are the medical treatments for hemophilia?  What do doctors advise patients to avoid?

13.  Caused when a person’s cells have an extra copy of chromosome 21  Often occurs because chromosomes fail to separate properly during meiosis

14.  What did doctors previously use to predict genetic disorders?  What do doctors use today?

15.  Amniocentesis is when doctors remove a small amount of fluid from around a developing baby  Doctors then examines the chromosomes from the cells

16.  Doctors examine chromosomes using a karyotype  Karyotype is a picture of all the chromosomes in a cell

17.  Explain how genetic disorders occur in humans. Give 2 examples.  Describe 2 tools that doctors use to detect genetic disorders.  How do the cells of people with Down syndrome differ from those of others? How might this difference happen?  A couple with a family history of hemophilia is about to have a baby girl. What information about the parents would you want to know? How would this help determine whether the baby will have hemophilia?