Forensics

We know hair is from a human if…

• The medullary index is 0.5 or greater           

• The medullary index is 0.33 or less

• The cuticle is coronal

• The medulla is fragmented

Hair is helpful in solving old crimes because…

• hair on a suspect never changes

• hair always contains DNA evidence

• hair takes little room to store in evidence closets

• hair does not easily decompose

The following medulla pattern is called

• fragmented 

• continuous

• interrupted

Which scale pattern identifies human hair?

• Imbricate

• Coronal

• Spinous

• None of these

The most important structure for the individualization of hair (identity).

• Medulla

• Cuticle

• Cortex

• Follicle

Which scale pattern is indicated?

• Coronal

• Spinous

• Imbricate

• None of these

Tags

NGSS.MS-LS4-2

Which scale pattern is indicated?

• Coronal

• Spinous

• Imbricate

• None of these

Which statement is true? 
mDNA   ....

• links an individual with male family members 

• is individual evidence

• is usefull with old and degraded remains

• is very fragile and does not preserve well

Tags

NGSS.HS-LS3-1

comparison microscope

• a compound microscope that allows the side by side comparison of the samples, such as of hair or fibers

• material that connects an indivisual or thing to a certain group

• the tough outer covering of a hair composed of overlapping scales

• the centrel core of a hair fiber

What is the primary purpose of forensic science?

• To entertain the public

• To solve crimes by analyzing evidence

• To create fictional crime stories

• To study ancient civilizations