Punnett Square/Mono-Hybrid Cross:   In cattle, black coat color is dominant to red coat color.  Both parents are heterozygous. What are the possible genotypes & phenotypes of the progeny? What is significant about this type of cross?

The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1 and F2 genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.

Dihybrid and trihybrid Cross Get the genotypic and phenotypic ratio of the following: Trihybrid cross: Breed AaBbCc to another AaBbCc.

dominant-therefore someone with AB genotype has AB phenotype. You can see both because they are codominant) i) What are the possible genotypes for someone with A blood type? ii) What about B blood type? iii) Let's assume that an person by the name of Dustin Beilber (this name sounds really familiar for some reason) is taken to trial in a paternity suit by a woman claiming that he is the father of her child. He claims he is not the father. At the trial, an expert witness reveals the blood types of all three: Dustin's blood type – B Mother's blood type – A Child's blood type – O Based on these data, is it possible that Dustin is the father of this child? (To put this in terms of the scientific method, you are trying to disprove the hypothesis that Dustin is the father). If you can't disprove this, it doesn't mean that he is the father, it simply means that you cannot reject the hypothesis). Explain your answer.