Asked by yo pap
Breed ten offspring mice.
In the data table, record the number (out of 10) and percentage (out of 100%) of each phenotype in the rows "Simulated Number" and "Simulated Percentages respectively."
As predicted by the Punnett square,
% of the offspring have black fur for this cross.
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75%.
Explanation: If the cross is Bb × Bb (black dominant to non‑black), the Punnett square gives BB, Bb, Bb, bb — 3 out of 4 (3/4) are black → 75% black and 25% non‑black. For a sample of 10 offspring the expected (theoretical) numbers are 7.5 black : 2.5 non‑black, so in practice you would record either 7 or 8 black (and 3 or 2 non‑black) and calculate percentages as (count/10)×100 (for example, 8/10 = 80% black, 2/10 = 20% non‑black).
Explanation: If the cross is Bb × Bb (black dominant to non‑black), the Punnett square gives BB, Bb, Bb, bb — 3 out of 4 (3/4) are black → 75% black and 25% non‑black. For a sample of 10 offspring the expected (theoretical) numbers are 7.5 black : 2.5 non‑black, so in practice you would record either 7 or 8 black (and 3 or 2 non‑black) and calculate percentages as (count/10)×100 (for example, 8/10 = 80% black, 2/10 = 20% non‑black).
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