In maize, the colored endosperm and smooth aleuron are controlled by the dominant C and S genes, while the unstained endosperm

In maize, the colored endosperm and smooth aleuron are controlled by the dominant C and S genes, while the unstained endosperm and wrinkled aleuron are controlled by their c and s recessive alleles. These genes are located on the same pair of homologous chromosomes, that is, they are linked. Therefore, as a result of the combination of these genes, an unequal number of gametes is formed: there are significantly more non-crossover gametes than crossover ones. The distance between the C and S genes was found to be 3.6 crossing over units. What offspring and in what proportion can be expected from crossing a diheterozygous corn plant with a colored endosperm and a smooth aleurone with a plant homozygous for recessive traits?

In F1 48.2% of plants with colored endosperm and smooth aleurone, 48.2% of plants with uncolored endosperm and wrinkled aleurone, 1.8% of plants with colored endosperm and wrinkled aleurone, 1.8% of plants with uncolored endosperm and smooth aleurone.

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