Second: Sickle cell anemia is a recessive trait. What are the chances that a child will develop Sickle cell disease if one parent is heterozygous and the other is homozygous dominant for the disease?
Last: What type of inheritance do the above questions display? How do you know? /
STATION 2 / First: In rabbits, a rabbit with black fur and a rabbit with white fur have offspring with grey fur. A pet store has been getting a lot of requests for grey rabbits. However, they only have one parent grey rabbit to mate with a black parent rabbit. What is the percent possibility of the pet store owners getting grey offspring if these two rabbits are crossed?
Second!
In Vixcies, a blue toed male and a yellow toed female can have a green toed offspring. What is the phenotypic ratio of possible offspring of a cross between a green toed Vixcie and a yellow toed Vixcie.
Last: What type of inheritance do the above questions display? How do you know? /
STATION 3 / First: Chrissy is blood type O. Her husband is heterozygous for blood type B. What are the possible phenotypes of their children?
Second!
Dan is homozygous for blood type B. Dan marries a woman who is heterozygous for blood type A. What are the possible offspring from this cross?
Last: What type of inheritance do the above questions display? How do you know? /
STATION 4 / First: What are the possible blood types of a child who's parents are both heterozygous for "B" blood type?
Second! Determine the possible genotypes & phenotypes with respect to blood type for a couple who's blood types are homozygous A & heterozygous B.
Third! Jill is blood Type O. She has two older brothers (who tease her like crazy) with blood types A & B. What are the genotypes of her parents with respect to this trait? /
STATION 5 / First: Coat color in cats is a dominant trait and is located on the X chromosome. Cats can be black, yellow or calico. A calico cat has black and yellow splotches. In order to be calico, the cat must have an allele for the black color and an allele for the yellow color. Use a Punnet square to show why there are no male calico cats.
Second! In humans Hemophilia is a sex-linked recessive disorder. What is the probability of a normal male and a female that has Hemophilia having children with Hemophilia?
Last: What type of inheritance do the above questions display? How do you know? /
STATION 6 / First: In cows, red is co-dominant with white. A female that is roan is crossed with a male that is red. How many of the resulting offspring would be roan? Write a ratio to represent this
Second! In donkeys, purple is co-dominant with white. A purple and white striped father is crossed with a purple mother. How many of the resulting offspring would be purple? How many of the offspring would be white? Write a ratio to represent this.
Last: What type of inheritance do the above questions display? How do you know? /
STATION 7 / First: A hemophiliac man marries a phenotypically normal woman and they have 2 boys. One boy is normal but the other has hemophilia. What was the genotype of the mother?
Second: One of the parents of a child has phenylketonuria (PKU), which is caused by recessive alleles. The other parent does not have the PKU alleles. What is the chance that the couple will have a child with phenylketonuria?
Last: What type of inheritance do the above questions display? How do you know?
Hint! These two will be DIFFERENT. /
STATION 8 / First: Which set of parents can most likely produce a child with type O blood?
a. one parent with type AB blood, and the other parent with type A blood
b. one parent with type AB blood, and the other parent with type O blood
c. one parent with heterozygous type A blood, and the other parent with type O blood
d. one parent with homozygous type A blood, and the other parent with homozygous type B blood
Second: Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of theirchildren? /
Co-Dominance
First: In cows, red is co-dominant with white. A female that is roan is crossed with a male that is red. How many of the resulting offspring would be roan? Write a ratio to represent this
Second!
In donkeys, purple is co-dominant with white. A purple and white striped father is crossed with a purple mother. How many of the resulting offspring would be purple? How many of the offspring would be white? Write a ratio to represent this.