In the diagram below, a side view of the three major parts o…

In the diagram below, a side view of the three major parts of a spiral galaxy like the Milky Way are shown.  There is a spherical part (a), a pancake-shaped part (b), and an elongated blimp-shaped part (c).  Write the official names of these three major parts of the Milky Way: a: b: c:  

DNA from a crime scene is being analyzed, but the budget is…

DNA from a crime scene is being analyzed, but the budget is very limited. Instead of examining the 15 STR sites generally used to create a DNA profile, only 8 STR sites are examined. There are only two possible suspects in the crime, and they are brothers. Will the eight STR sites examined be adequate to make a positive identification to determine which brother committed the crime?