DNA Technology Test Review questions with correct answers

What is in-vitro fertilization? CORRECT ANSWER IVF is a method of assisted reproduction, a man's sperm and a woman's egg are combined in a laboratory dish, where fertilization occurs. The embryos are then transferred to a woman's uterus. What is amniocentesis? CORRECT ANSWER The sampling of amniotic fluid using a hollow needle inserted into the uterus, to test for developmental abnormalities in a fetus. What is sickle cell anemia? CORRECT ANSWER Sick Cell disease is a disorder that affects red blood cells. Patients have a mutation in a gene on chromosome #11. Red blood cells cannot transport oxygen effectively. What is cystic fibrosis? CORRECT ANSWER Cystic fibrosis is a genetic disorder that affects that respiratory and digestive systems. A defective gene on chromosome #7 is inherited. Give 3 examples of GMO's explaining how they have been modified. CORRECT ANSWER 1. Bt potatoes- Bt is a natural pesticide added to crops to protect them from insects. 2. Oncomouse- Transgenic mice that always develop cancer because of a mutated cell growth gene- Used to study cancer and anti-cancer drugs. 3. Knockout Mouse- Mice that do not have a gene for a protein called Leptin that controls food intake- Used to study obesity.