About 60 percent of chicken genes correspond to a similar human gene. However, researchers uncovered more small sequence differences between corresponding pairs of chicken and human genes, which are 75 percent identical on average, than between rodent and human gene pairs, which are 88 percent identical on average.
Yes STR's can be used to identify whose blood was found at the scene because every individual has a unique number of repeats at the specific loci in their DNA that is being examined during STR analysis at the crime lab.
Note that nebula color depends on its chemical composition and its degree of ionization. Because of the prevalence of hydrogen and relative low of ionization energy, its emission appears red.