Hair And Fibers Question Preview (ID: 48067)


Hair And Fibers Review. TEACHERS: click here for quick copy question ID numbers.

The shaft of the hair is considered class evidence in a trial.
a) true
b) false
c)
d)

Hair is composed mostly of a protein called cellulose.
a) true
b) false
c)
d)

All hairs on a persons head is identical.
a) true
b) false
c)
d)

Hair can provide clues of someones ancestry.
a) true
b) false
c)
d)

Hair can be used to determine_______.
a) diet
b) drug habits
c) geographic history
d) all of the above

Which part(s) of a hair can be analyzed for nuclear DNA?
a) follicle
b) shaft
c) medulla
d) all of the above

Animal hair can be distinguished from human hair because animal hair
a) has a smaller medulla index than human hair and no cortex
b) does not have a cuticle
c) always have a continuous medulla pattern
d) has a greater medullary index and more variation in the cuticle patterns

Which of the following is most likely a result of hair bleaching?
a) increased numbers of disulfide bonds
b) oxidized hair and damaged dna
c) a more triangular cross section
d) thickened cells on a cuticle

Natural fibers can be harvested from_____.
a) plants and animals
b) only from plants
c) only from animals
d) plants, animals, and minerals

All of the following are characteristics of synthetic fibers except____.
a) made from plants, animals, and minerals.
b) man made
c) they are used in the production of carpet fibers
d)

This is the most common type of plant fiber
a) cotton
b) wool
c) nylon
d)

this is the most common animal fiber
a) plant
b) wool
c) cotton
d)

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