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- 1. Multiple ChoiceThe protein that makes up hair is called _____ninhydrinpigmentsmedullakeratin
- 2. Multiple ChoiceThe smallest unit of textile material that has a length many times greater than its diameter is..keratincuticlesfiberschromatography
- 3. Multiple ChoiceThe deepest layer of hair (compared to the lead of a pencil) is the ___medullacortexcuticlekeratin
- 4. Multiple ChoiceThe middle layer of a hair (compared to the wood of a pencil) is the __medullacortexcuticlekeratin
- 5. Multiple ChoiceThe outside layer of a hair (compared to the ink on a pencil) is the ___medullacortexcuticlekeratin
- 6. Multiple ChoiceWhich is NOT a characteristic of the medulla that varies and therefore should be observed?scalesopacitythicknesscontinuity
- 7. Multiple ChoiceWhich of the following is NOT one of the characteristics of the cuticle that varies and should be observed?scalescontinuitypigmentthickness
- 8. Multiple ChoiceWhich layer of hair is the most important component when determining which individual human the hair came from?medullacortexcuticle
- 9. Multiple ChoiceThe name for man-made fibers is:processed fiberssynthetic fibersnatural fibersmodified fibers
- 10. Multiple ChoiceWhich of the following types of medullas are NOT commonly found in human hair?continuousabsentinterruptedfragmented
- 11. Multiple ChoiceTo determine the medullary index, you would ______.measure the diameter of the medulla and divide it by the diameter of the hairmeasure the diameter of the hair and divide it by the diameter of the medullameasure the length of the medulla and divide it by the length of the hairmeasure the diameter of the medulla and divide it by the diameter of the cortex
- 12. Multiple ChoiceWhat is the medullary index for a human hair?generally less than 1/3generally equal to 1/3generally more than 1/3generally greater than 1/2
- 13. Multiple ChoiceWhich of the following is NOT one of the hair shapes in cross-section?squareroundovalcrescent moon
- 14. Multiple ChoiceIn which phase of hair growth is hair actively growing?anagencatagentelogenmelanen
- 15. Multiple ChoiceWhich phase of hair growth usually lasts three to five years?anagencatagentelogenmelanen
- 16. Multiple ChoiceWhich phase of hair growth is the intermediate period of hair growth and lasts about three weeks?anagencatagentelogenmelanen
- 17. Multiple ChoiceWhich phase of hair growth is the final phase of hair growth that results in hair loss and lasts about three months?anagencatagentelogenmelanen
- 18. Multiple ChoiceAnimal hair roots are generally _____.spear shapedpear shapedroundlong and thin
- 19. Multiple ChoiceWhere is Nuclear DNA found in the hair?roothair shafttipmedulla
- 20. Multiple ChoiceWhat can be said about hair that is in the anagen phase, is no longer in the scalp and has follicular tissue attached?the hair has been forcibly removedthe hair fell out of the scalpthe hair has been bleached to often and has diedthe hair died from being too dry
- 21. Multiple ChoiceSmall sacs of air found within the cortex are called...?central embolismcortical fusiair granulesoval bodies
- 22. Multiple ChoiceHair is helpful in solving old crimes because…hair on a suspect never changeshair always contains DNA evidencehair takes little room to store in evidence closetshair does not easily decompose
- 23. Multiple ChoiceWhen collecting hair as evidence, a detective should NOT do which of the following?Pluck hairs from the suspect’s headCut hairs from the suspect’s headCollect loose hairs from the suspect’s headA detective should do all of the above
- 24. Multiple ChoiceWe know hair is from a human if…The medullary index is 0.5 or greaterThe medullary index is 0.33 or lessThe cuticle is coronalThe medulla is fragmented
- 25. Multiple ChoiceIn order to determine if a hair is from an animal or human, one should divide the diameter of the...medulla by the entire hairmedulla by the cortexcortex by the medullacortex by the entire hair
- 26. Multiple ChoiceWhy type of medulla is frequently found in the hairs of Native Americans and Asians?ContinuousInterruptedFragmentedSolid
- 27. Multiple ChoiceHuman hairs generally have what two types of medulla?Continuous or interruptedFragmented or noneSolid or interruptedFragmented or solid
- 28. Multiple ChoiceHair analysis may be used to determine all of the following except:manner in which the hair was removedbody region from which the hair came frombroad racial background of the individual from which the hair came fromidentity of the individual from which the hair came from
- 29. Multiple ChoiceHair with a round cross section and a large diameter is classified as...?AsianAfricanEuropean
- 30. Multiple ChoiceThe most common type of regenerated fiber, derived from cellulose iscottonrayonsilknylon
- 31. Multiple ChoiceFibers that have spun together are calleda textileyarna mineral fibera fiber
- 32. Multiple ChoiceWhen fibers are transferred directly from victim to suspect or suspect to victim, this is called:necessary transfer.direct transferabsolute transfer.None of these choices.
- 33. Multiple ChoiceFibers are classified as either:natural fibers or synthetic fibers.polymers or synthetic fibers.acrylic fibers or plant fibers.olefins or synthetic fibers
- 34. Multiple ChoiceNatural fibers come from:animals.plants.minerals that are mined from the ground.All of these choices.
- 35. Multiple ChoiceA lengthwise yarn or thread in a weavepolymerwarpweftyarn
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