Crossed heterozygous red-fruited tomatoes with homozygous red-fruited. Determine the splitting formula by phenotype and genotype.

Since both the homozygote and the heterozygote can be red, this is a dominant trait.
Accordingly, the genomes of the parents are Aa and AA, and the offspring are AA and Aa, whose phenotypes are similar to the parental ones. Therefore, the genotype cleavage is 1: 1, but there is no cleavage according to the phenotype.



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