The genotype at the gene "Q" is QQ (homo-zygous dominant)
- In genetics, an individual is homo-zygous when the two gene variants or 'alleles' at a given locus are the same; whereas an individual is heterozygous when the two alleles are different.
- Moreover, complete dominance occurs when an allele called 'dominant' masks the expression of another 'recessive' allele of the same gene in heterozygous individuals.
- In a genotype, the uppercase letters normally represent the dominant alleles, whereas lowercase letters represent the recessive alleles.
In consequence, in this case,
- The genotypes QQ and UU denote homo-zygous dominant traits for the genes 'Q' and 'U', respectively.
- The genotypes Rr and Ss denote heterozygous traits for the genes 'R' and 'S', respectively.
- The genotype tt denotes a homo-zygous recessive trait for the gene 'T'.
In conclusion, in this case, the genotype at the gene "Q" is QQ.
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