Question

question 7 (multiple choice worth 3 points)
(01.02r mc)
locards exchange principle implies all of the following except
walking can leave footprints on the ground
dna from a john doe can help identify the body
soil from the yard can enter your home on your shoes
clothing fibers can transfer from one person to another

Explanation:

Locard's exchange principle states that when two objects come into contact, there is an exchange of materials. Footprints (walking leaving footprints), soil transfer (soil from yard on shoes), and fiber transfer (clothing fibers between people) are examples of this exchange. DNA identification of an unknown body (John Doe) is about using DNA profiling for identification, not an exchange of materials as per Locard's principle.

Answer:

DNA from a John Doe can help identify the body