In the square below which boxes will correspond with a heterozygous genotype?

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4 points
Captionless Image
1, 2 and 3
1
2 and 3
1 and 2
4 only

To determine which boxes correspond with a heterozygous genotype, we need to know what the options are for the genotypes in the square. Without more information, it is not possible to accurately determine which boxes correspond with a heterozygous genotype.