<p> Name ______Genetics: X Linked Genes In fruit flies, eye color is a sex linked trait. Red is dominant to white.</p><p>1. What are the sexes and eye colors of flies with the following genotypes: X R X r ______X R Y ______X R X R ______X r Y ______</p><p>2. What are the genotypes of these flies: white eyed, male ______red eyed female (heterozygous) ______white eyed, female ______red eyed, male ______</p><p>3. Show the cross of a white eyed female X r X r with a red-eyed male X R Y .</p><p>4. Show a cross between a pure red eyed female and a white eyed male.</p><p>What are the genotypes of the parents: ______x ______</p><p>How many are: white eyed, male______white eyed, female ______red eyed, male ______red eyed, female ______</p><p>5. Show the cross of a red eyed female (heterozygous) and a red eyed male. </p><p>What are the genotypes of the parents? ______& ______</p><p>How many are: white eyed, male______white eyed, female ______red eyed, male ______red eyed, female ______Hemophilia is a rare inherited bleeding disorder where the blood does not clot normally. Someone with hemophilia may bleed for a longer time following an injury. H = no hemophilia (normal) h = hemophilia (x linked recessive trait)</p><p>Fill in the following phenotypes: XHXH = ______XHY = ______XHXh = ______XhY = ______XhXh = ______</p><p>6. In humans, hemophilia is a sex linked trait. Show the cross of a man who has hemophilia with a woman who is a carrier. </p><p>What is the probability that their children will have the disease? ______</p><p>7. A woman who is a carrier marries a normal man. Show the cross. What is the probability that their children will have hemophilia? What sex will a child in the family with hemophilia be?</p><p>8. A woman who has hemophilia has a phenotypically normal mother. What are the genotypes of her mother and father?</p><p>Mom ______</p><p>Dad ______</p><p>9. A phenotypically normal woman has phenotypically normal parents. However, she has a hemophiliac brother. a) What are the chances of being a carrier for hemophilia? ______</p><p>Color blindness (color vision deficiency) is a condition in which certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is the most common form, about 99% of all color blind cases, and causes problems in distinguishing reds and greens. Another color deficiency Blue/Yellow also exists, but is rare. Total color blindness (seeing in only shades of gray) is extremely rare. C = normal vision c = color blind</p><p>10. If a normal sighted woman whose father was colorblind marries a color blind man, what is the probability that they will have a son who is colorblind? ______b) What is the probability that they will have a color blind daughter? ______11. What is the probability that a color blind woman who marries a man with normal vision will have a color blind child?</p><p>In cats, the calico color pattern has black, orange/red, and white all represented in clear color blocks. The gene for calico (multicolored) cats is codominant. Females that receive a B (Black) and an O (Orange) gene have black and orange splotches on white coats. Males can only be black or orange, but never calico. </p><p>Fill out the phenotypes for the following genotypes: </p><p>XBXB = ______XBY = ______XBXO = ______XOY = ______XOXO = ______</p><p>12. Show the cross of a female calico cat with a black male?</p><p>What percentage are black male kittens? ______What percentage are calico female kittens? ______</p><p>13. Show the cross of a female black cat, with a male orange cat. </p><p>What percentage are calico female? ______What color will all the male kittens be? ______</p>