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Check your state Natural Heritage Program (or that of a nearby state if your state doesn’t have one) on the internet. Find one species that is threatened or endangered in your area. What kinds of factors have lead to that species being listed as threatened or endangered? What actions have […]

1) Describing how you would test the hypothesis. Start by examining the living species around you. Ever wonder why the pollinator is attracted to the particular flower, or what would happen to predator species if a certain prey species is removed? If you were a scientist you would do an […]

1. The genes for ruby eyes (rb), tan body (t) and cut wings (ct) are all found on the X-chromosome of Drosophila melanogaster. All of these are recessive traits. They map in the order rb, ct, t with 12.5 map units between rb and ct and 7.5 map units between […]

A fundamental difference between eukaryotic viruses with DNA genomes versus those with RNA genomes is: a) Most eukaryal DNA viruses replicate in the host cell nucleus while most eukaryal RNA viruses replicate in the cytoplasm. b) Most eukaryal DNA viruses are double stranded while most eukaryal RNA viruses are single […]