There are many types of dwarfism. Acondroplastic dwarfism is a dominant trait.
Living individuals are heterozygous for the trait as a homozygous dominant individuals have substantial skeletal anomalies that result in death in infancy.
Many possible genotypes, producing ,any possible phenotypes.
A Punnett Square is a helpful device for predicting the proportions of possible genotypes
punnet square
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Many possible genotypes, producing ,any possible phenotypes.
The letters on the outside are the genotypes of two parents. Inside are the possible genotypes of possible offspring of the two
the Punnett square
A Punnett square is used to lay out the possible genotypes of offspring based on the genotypes of the parents being bred. From this, the probabilities of certain phenotypes and genotypes can be determined.
AO or AA
Possible genotypes would be AA and Aa. Phenotypes cannot be determined here because they are the physical, observable results of a genotype.
If the first person is AA, then the possible resulting genotypes are AA or AB. If the first person is AO, then the possible resulting genotypes are AA, AB or BO.
BB or Bo normally.