🤓 Based on our data, we think this question is relevant for Professor Bailey's class at BYU.
A. For a cross between a three-humped (H _ ), fire-breathing (F _) monster with a two-humped (hh), non-fire-breathing (ff) monster to produce progeny that all have dominant phenotypes, the three-humped, fire-breathing monsters must be homozygous dominant for both traits because having heterozygous alleles for any would produce a 1:1 dominant-recessive phenotype ratio.
The genotypes of the parents are therefore HHFF and hhff. There aren't enough information to give further distinction between the father and the mother.
In Loch Ness Monsters, three humps is dominant to two humps, and fire-breathing ability is dominant to non-fire-breathing. I crossed a three-humped, fire-breathing monster with a two-humped, non-fire-breathing monster. All of my baby monsters were three-humped and fire-breathing.
A. What were the genotypes of the mom and dad monsters.
B. What are the genotypes of the babies?
C. If I crossed a baby brother with a baby sister, what would the expected genotypic and phenotypic frequencies be?