Final answer:
As both parents have two copies of the same recessive allele, all their offsprings will also have this characteristic. Hence, the phenotypic ratio of their offsprings' will be 1:0.
Step-by-step explanation:
The phenotypic ratio of the offsprings would be 1:0, as both parents carry recessive alleles (ff). In the study of genetics, the letters represent different versions of genes, known as alleles. The alleles can be either dominant or recessive. Notate dominant alleles usually with upper case letters and recessive alleles with lower case letters. In your example, both parents have two copies of the same recessive allele (ff), meaning all their offspring will also have two copies of this recessive allele. As all children will be homozygous for this trait (ff), there will be no phenotypic variation, resulting in a ratio of 1:0.
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