In Drosophila melanogaster, the wild-type eye colour is dark red. A fly from a true-breeding strain with scarlet eyes is crossed to a fly from a true-breeding strain with brown eyes. All the offspring have dark red eyes. The F1 flies are intercrossed to produce an F2 generation. This comprises 472 flies with dark-red eyes, 138 with scarlet eyes, 145 with brown eyes and 45 with white eyes. A. Three genes are segregating in this cross
B. Two independently assorting genes are segregating in this cross
C. Two linked genes are segregating in this cross
D. The phenotypes result from interactions between genes
E. The brown eye colour is the result of epistasis

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates

Explain how you will prioritize tasks in the medical office by immediate, essential, or optional. how will you re-prioritize when disruptions occur?

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation