You have been given the phenotype of the individual, that he/she suffers from sickle cell anemia. From this you first need to determine the individual's genotype. If normal blood cells are the dominant trait, what then, must be the genotype of an individual suffering from sickle cell anemia?

What gametes will be produced following meiosis? (If you have trouble picturing how this works, refer back to the kelp example or look up meiosis and how it relates to gamete formation in your text.)

Now return to the question page and select the correct answers.

First determine the gametes produced by each parent. What would these be for the SS parent?

....and for the ss parent?

Now that you have the gametes of the parents, perform a punnett square to determine what the F₁ offspring would be (remember to place the gametes of one parent across the top and the gametes of the other parent down the left side. It does not matter which parent's gametes are placed across the top and which are placed down the side.):

Your punnett square should look similar to the one below. If it does not, review the material on gamete formation and how to set up the punnett square and try again.

	S	S
s	Ss	Ss
s	Ss	Ss

Now you are back to what gametes will be formed by the Ss offspring of the above cross. (If you still have trouble picturing how this works, refer back to the kelp example or look up meiosis and how it relates to gamete formation in your text.)

Now return to the question page and select the correct answers.