Question

all hairs on the head of a person are identical. *
false
true

medullary index of 0.29 microns is likely *
animal
human
impossible to determine

what part of the hair must be present in order to conduct a full dna analysis? *
medulla
root
follicle
crown

which famous political leaders hair analysis revealed high levels of arsenic? *
stalin
alexander the great
napoleon

Explanation:

• Hairs on a person's head vary in characteristics like color, texture, and diameter, so the first statement is false.
• A medullary index of 0.29 microns is more typical of animal hair (human hair usually has a medullary index less than 0.33).
• The hair follicle contains cells with nuclear DNA and is necessary for full DNA analysis.
• Hair analysis of Napoleon Bonaparte revealed high levels of arsenic.

Answer:

1. False
2. animal
3. follicle
4. Napoleon