In a particular plant leaf color is controlled by gene locus D Plants with at least one allele D have dark green leaves and

Question

In a particular plant leaf color is controlled by gene locus D Plants with at least one allele D have dark green leaves and plants with the homozygous recessive dd genotype have light green leaves A heterozygous genotype Dd is crossed with hetetrozygous Dd genotype and the predicted outcome is diagrammed in the Punnett square shown in Figure where 1 2 3 and 4 represent the genotypes corresponding to each box within the square Which of the boxes marked 1 4 correspond to plants with dark leaves 1 and 2 O2 and 3 O 4 only D D 1 2 d 3 1 2 and 3 d 2 4

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