The predicted genotype of the offspring is GgNn.
When the fly that is homozygous dominant for both traits is crossed with a fly that is homozygous recessive for both traits, it contains two copies of the same allele for a gene. When two copies of the same dominant allele or two copies of the same recessive allele are present in an organism, it is said to be homozygous dominant or homozygous recessive so the predicted genotype of the offspring is GgNn
When an organism is heterozygous, it has two distinct alleles of the same gene. For instance, pea plants can have either homozygous dominant (red-red) or heterozygous red blooms (red-white). They are homozygous recessive if they have white blooms (white-white).
Heterozygous carriers are always present. Recessive homozygotes are those who have CF. People with Huntington's disease can either be homozygous dominant or heterozygous because the condition is autosomal dominant.
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