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. Punnett Square. Diagram showing the gene combinations that might result in a genetic crossTwo identical alleles = homozygousHomo = samezygous = joinedTwo different alleles = heterozygousHetero = otherzygous = joinedDominant traits = capitalizedRecessive traits = lowercaseGenotype = al
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1. Probability Probability
the mathematical chance that a particular event will occur
Expressed as a fraction or %
Coin flip – 2 possible outcomes
Chances equal ½ or 50%
3 times in a row ½ x ½ x ½ = 1/8 (past outcomes do not affect future ones)
The principles of probability can be used to predict the outcomes of genetic crosses