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Punnett Square Practice Problems
Punnett Square Practice Problems
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A plant species has two alleles for stem length: Long (L) and Short (l). The Long (L) allele exhibits incomplete dominance. The intermediate phenotype is intermediate stems.
Based on the following Punnett Square, what is the probability that an offspring will be heterozygous?
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Given your answer to the nearest percentage.
%
HINT
Each genotype shown in the Punnett Square has a 25% chance of occuring. If the same genotype appears in more than one square, the probabilites are added:
1 square = 25% probability
2 squares = 50% probability
3 squares = 75% probability
If the same genetype appears in all 4 boxes, 100% of the offspring will have that genotype.
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