Biology – The roles of genes in determining the phenotype | e-Consult
The roles of genes in determining the phenotype (1 questions)
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Parental Genotypes:
- Parent 1: L1G1 (long, grey)
- Parent 2: l1g1 (short, black)
Punnett Square:
| | | l | g |
| L | Ll | Lg |
| G | Lg | Gg |
Phenotypic Ratio:
The possible genotypes of the offspring are LlGg, LgGg, Lggg, Llgg. The corresponding phenotypes are long grey, long grey, long black, and short black.
Therefore, the phenotypic ratio is 1 long grey : 1 long black : 1 short black. This can be expressed as 1:1:1.