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  • Stage 1

    Answer 4 questions correctly in a row.

This passage describes the Tobiano patterning trait in horses:
The Tobiano pattern is a type of coat pattern in horses. Horses with Tobiano patterning have white legs and rounded white patches on their bodies. Their tails may also have a mix of white and colored hairs.
​In a group of horses, some individuals have Tobiano patterning and others do not. In this group, the gene for the Tobiano patterning trait has two alleles. The allele for not having Tobiano patterning (b) is recessive to the allele for having Tobiano patterning (B).
Complete the Punnett square below to show all possible genotypes of the offspring from a cross between two horses.
B
b
B
BB
Bb
b
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