Investigators at a crime scene have isolated DNA from a Y chromosome and have analyzed it for its STRs.They have a prime suspect,but he is not cooperating.However,several of his relatives are willing to help by donating DNA samples.Which relative will have the most similar Y chromosome?

Question

Quizplus · Accepted Answer

The Y chromosome is passed down from father to son, so the best choice for a Y chromosome match would be a male relative from the suspect's paternal lineage. The suspect's father's father would be the closest male relative in the paternal lineage, as he would share the same Y chromosome as the suspect's father who, in turn, passed it down to the suspect.

Investigators at a Crime Scene Have Isolated DNA from a Y