. Place both coins in cupped hands, shake, and then toss the coins onto your desk. Read and record the letter combination in column C (Toss Results) of Table 1. Make a slash (/) in the proper row of column C to indicate the letter combination. Repeat this process until the coins have been tossed 100 times. Record the coin combinations for each toss in Table 1. list in column A of Table 2 the number of offspring expected to have normal skin color (SS and Ss) and the number expected to be albino (ss). • Calculate the number expected to have each trait if there are 100 offspring. Do this by multiplying column A figures by 25. Record these numbers in column B of Table 2. . Record in column D the totals for each. Part C. Determining Numbers of Expected Phenotypes . Assume that S represents the dominant gene for normal skin pigment. Assume that s represents a recessive condition called albinism, no skin pigment. From the Punnett square (Figure 1), Part D. Determining Numbers of Observed Phenotypes From your data in column D of Table 1, total and record in column c of Table 2 the number of offspring who will have normal skin pigment (SS, Ss, and ss) and those who will be albino (ss). TABLE 1. EXPECTED AND OBSERVED GENOTYPES (A) (B) (C) EXPECTED EXPECTED GENOTYPE FOR GENOTYPE FOR TOSS 4 OFFSPRING 100 OFFSPRING RESULTS (D) GENE COMBINATION OBSERVED GENOTYPE FOR 100 OFFSPRING SS Ss or ss SS