1. HUMAN GENOME VOCAB ONLY

2. What disorder is it? Mutation in the blood clotting protein makes person unable to stop bleeding after an injury _______________ Mutation in hemoglobin causes red blood cells to change shape and ____________________ clog up blood vessels Mutation causes mental retardation if foods containing phenylalanine are eaten _____________________ Three #21 chromosomes are present causing mental retardation _______________________ Mutation in ion channel protein causes thick mucous to clog up lungs and digestive organs _______________________ Hemophilia Sickle cell anemia Phenylketonuria (PKU) Down syndrome Cystic fibrosis

3. This organized picture of an individual’s chromosomes is called a _________________ karyotype A person who has a copy of the gene for a recessive disorder but doesn’t show any signs of the sickness is called a _________________ carrier

4. What disorder is it? Gradual deterioration of the brain that appears during middle age ____________________ Progressive weakening of muscle proteins resulting in inability to walk and eventually death_________________________ Inability to distinguish between the colors red and green _____________________ Only one X and no y chromosome ____________________ An X linked disorder (There is more than one right answer here) __________________ Huntington’s Muscular dystrophy Colorblindness Turner syndrome Muscular dystrophy Colorblindness Hemophilia

5. What disorder is it? Inability to break down phenylalanine ____________________ eating food containing this amino acid causes mental retardation Males with an extra X chromosome ______________________ (XXY) karyotype; some female features; infertility Build up of lipids in brain causes blindness, retardation, early death __________________________ A autosomal Dominant disorder (There is more than one right answer here) __________________ Phenylketonuria (PKU) Klinefelter syndrome Tay-Sach’s Huntington’s OR Achondroplasia

6. The cell that forms when an egg and a sperm join together is called a _______________ Twins with different DNA that come from 2 different egg and sperm are called zygote Dizygotic or fraternal

7. A body cell is also called a ______________ cell. SOMATIC ______________ mutations cause death often before birth. Twins that come from one sperm and egg are called _____________ LETHAL MONOZYGOTIC or maternal

8. Dark spot in the nucleus made when one of the X chromosomes in females is inactivated BARR BODY When homologous chromosomes don’t separate during meiosis it is called _________________ nondisjunction

9. A gene that is carried on the X chromosome is called ____________ A _________ cell mutation happens in sperm or egg cells. Twins which don’t separate entirely and remain attached by some body part are called ______________ X-linked GERM conjoined

10. Picture that shows how genes are passed on from one generation to the next in a family pedigree Chromosomes that don’t determine sex autosomes

11. Another name for “dwarfism” X and y chromosomes that determine whether you are a male or female Achondroplasia Sex chromosomes

12. Mutations that produce changes in a single gene = ______________________ Mutations that produce changes in whole chromosomes = _____________________ KINDS OF MUTATIONS GENE MUTATIONS CHROMOSOMAL MUTATIONS

13. Change in one or just a few nucleotide in the code Deletion or insertion that causes the remaining nucleotides to be regrouped & read incorrectly Point mutation Frameshift mutation KINDS OF MUTATIONS

14. One nucleotide in code is replaced by another Complete set of chromosomes fails to separate resulting in 3N or 4N organisms substitution polyploidy KINDS OF MUTATIONS

15. Piece of DNA is broken off and lost Piece of DNA breaks off and reattaches to another deletion translocation KINDS OF MUTATIONS

16. Piece of DNA breaks off, flips, and reattaches so that it reads backwards Piece of DNA is added to the code Extra copies of part of a chromosome are made inversion insertion KINDS OF MUTATIONS duplication