Activities: Punnett Squares of Birds

1) A black BB (codominant) bird mates with a red RR (codominant) bird. What will the offspring be? Complete the Punnett square.

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a. What is the probability of having a black bird?

b. What is the probability of having a red bird?

c. What is the probability of having a black and red bird?


2) A black Bb (codominant) bird mates with a red Rr (codominant) bird. Both b and r are recessive for brown. What will the offspring be? Complete the Punnett square.

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a. What is the probability of having a black bird?

b. What is the probability of having a red bird?

c. What is the probability of having a black and red bird?

d. What is the probability of having a brown bird?