Alexa and josephine are debating the phenotype of the offspring. alexa think that all of the offspring are going to have red flowers. josephine thinks that it is not possible for the offspring to have red flowers because they all have one "r" allele

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: