# The first square is filled in for you fill in the

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The first square is filled in for you. Fill in the remaining squares. (Note: FFWis equivalent to FW FR.R )2.Analyze: A homozygouschicken will have the same alleles for feather color. A heterozygouschicken will have two different alleles for feather color.A.Are the parents homozygous or heterozygous? Explain how you know. Heterozygous because they
B.What are the possible genotypes of the offspring? FrFr, FwFw, and FrFw.C.Will the offspring be homozygous or heterozygous? Both are possible.3.Calculate: Punnett squares can be used to predict probable outcomes of genetic crosses. To calculate probability, divide the number of one kind of possible outcome by the total number of all possible outcomes.For example, if you toss a coin, the chance it will land on heads is equal to 1 ÷ 2. This probability can be expressed as ½, 0.5, or 50%.Look at the Punnett square above. A.How many total possible outcomes are there? Four.B.How many of the possible outcomes are for each of the following genotypes? FR FR_____One__________ FW FW__One___________ FR FW___Two__________C.What is the probability for each of the following outcomes? (Record answers as both fractions and percentages.)FR FR______1/4 25%________ FW FW____1/4 25%_________ FR FW_1/2 50%______
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