A male is heterozygous for the trait that produces freckles on the skin, and he has freckles. If he marries a woman who is also heterozygous for freckles, 75% of their children are predicted to be freckled. Also, of all their children, 50% are predicted to be heterozygous.
The genotype of a plant
- The plant must be homozygous for the trait because the phenotype reflects the genotype.
- To test if any white plants emerge, cross the red plant with a white plant.
- A gene region where there are two distinct alleles present.
- A heterozygous genotype can consist of one normal allele and one mutated allele, or two different mutated alleles.
- The symbol Tt stands for the heterozygous state, in which a gene's homologous pair has two distinct alleles.
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