8. Which of the following is true given a mating between a woman who is a carrier for color blindness and a non color blind male. Remember this is a x linked recessive trait. 1. This couple could have a color blind son. 2. All their children would be color blind 3. This couple could have a color blind daughter 4. None of their children would be color blind

1. How often does XYY Syndrome occur in humans? 2. What are the characteristics of Marfan Syndrome and what famous person had Marfan Syndrome? 3. Can biological females inherit Y linked traits? 4. Which sex chromosome carries more genes?

5. What are the genotypes of individuals in the following autosomal recessive trait, attached earlobe? A Ww ww B A. What is the genotype of individual C3? B. Individuals B4 & B5 are going to have another child. What is the probability that their next child will have an attached earlobe? C. How many children A1 has?

3. A husband and wife have four daughters. What is the probability that their fifth child will also be a girl? 4. Six children are born on the same day. What is the probability that three will be boys and three will be girls?

5. Rather than studying you are watching Maury. A couple comes on with a baby. The father has brown eyes, his parents, grandparents, sister, and brothers all have brown eyes. The mother has blue eyes and the baby has blue eyes. The brown eye allele is dominant to blue eye allele. Using this information, answer the following questions. Co What is the likely genotype of the father? What is the genotype of the mother? What is the genotype of the child? Refi

2. My mom is colorblind, which is an X-linked recessive disorder. My dad has normal color vision. I have normal color vision, as does my husband. What are the chances that my son, Liam, and my daughter, Sloane, are colorblind? There are two Punnett square provided below, one for each generation.

5. Your maternal grandpa is colorblind but both your mom and dad are not affected. What are the chances of your sister being colorblind? What are the chances of your brother being colorblind? (Colorblindness is X-linked recessive)

16. A woman who is type O marries a man who is heterozygous for type A. What are the chances that they will have a type O baby? Tracking two traits. Now it's time to track two traits at the same time.

1. Is there a possibility that Joe's father has a genotype HH ? 2. The question does not mention that Joe's mother is hh.

Why must males inherit colorblindness or hemophilia from their mothers? I. Male offspring inherit the Y chromosome from their father II.Y chromosome of male offspring does not carry the aforementioned sex-linked trait III.X chromosome of male offspring carries the aforementioned sex-linked trait IV.Sex-linked traits are passed on from the double X chromosomes of the mothers. *   I, IV   I, II   I, II, III   I, II, III, IV