In a group of cucumber plants, some individuals have bumpy fruit and others have smooth fruit. In this group, the gene for the fruit texture trait has two alleles. The allele for smooth fruit (f) is recessive to the allele for bumpy fruit (F).

The Punnett square below shows a cross between two cucumber plants. Consider the genotypes of the offspring shown. Select all the boxes that represent offspring with a heterozygous genotype.

The Punnett square needs to be provided to determine which boxes represent offspring with a heterozygous genotype.