Answer:
Genotype Ratio: 1:4
Phenotype Ratio: 1:4
Step-by-step explanation:
Tt x tt
So, it tells us that for sure the mother has 2 recessive alleles and the father has for sure at least 1 dominant allele and 1 recessive allele (we know this because the offspring can only have a recessive trait if the offspring has 2 recessives, this can only happen if the father has a dominant and a recessive allele). If you put this into the Punnett Square you should find that the probability of Tt is 50% and tt is also 50%.
this would make both the Genotype and the Phenotype 1:4