Question 4

Parental Genotypes:

Homozygous Black Pacer = BBtt

Homozygous Chestnut Trotter = bbTT

The homozygous black pacer offers the following alleles in all of its gametes: Bt

The homozygous chestnut trotter offers the following alleles in all of its gametes: bT

Therefore all of the offspring from this cross will have the following genotype: BbTt, which means they will all be black trotters.

 

 

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