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11-7
Question | Answer |
---|---|
What is the permenantly condensed state of the second X chromosome called? | Barr Body |
What is primary nondisjunction? | Abnormal number of chromosomes |
What is aneuplody? | State of having an abnormal number of chromosomes |
What does monosomic? can monosomic humans survive? | Lost chromosome and no |
What is trisomic? Can trisomic humans survive? | Extra chromosome and yes with down syndrom |
What happens when there is an extra 21st chromosome? | Down syndrom |
What happens when there is an extra 13, 15, or 18th chromosome? | survives till birth but dies shortly after |
What does XXY result in? | Klienfielder syndrom. Sterile male with some female body parts |
What is XYY result in? | Fairly normal male appearance |
What does XXX result in? | Fairly normal female with 2 Barr Bodies |
What does OY reslut in? | Nonviable |
What does XO result in? | Turner syndrom, sterile female |
What is an X linked gene? | A gene that is needed by both males and females. Males do not have the chance to mask their trait. |
What is cystic fibrosis? | Gene needed for protein does ot function properly |
What is sickle cell anemia? | Blood circulation poor. Hemoglobin defective |
what is Hemophilia? | Blood refuses to clot. Controlled by defective X linked gene |
What is huntington's disease? | Dominant mental deterioration |
What is Tay-Sachs disease? | Appear normal but does not survive past 5 years old |
What is it called where people with history of genetic disease go to find out the odds of their child getting their disease? | Genetic counseling |