Alternate CSA #2 (Hair and Blood)

1

Which of the following is NOT a layer of the hair shaft?

1

A cast of a hair surface can be made using:

Playdoh

a scanning electron microscope

clear nail polish

none of the above

1

The stages of hair growth include all of the following EXCEPT:

1

Microscopic hair comparisons must be regarded by police and courts as:

class evidence

individual evidence

conclusive evidence

useless

1

Generally, a human hair can be distinguished from an animal hair by examining:

the medulla

the cortex

the texture

the color

1

Match the following scale patterns to their proper categories.

coronal
spinous
imbricate

2

Match the medulla patterns to their appropriate descriptions.

Draggable item		Corresponding Item
		fragmented
		intermittent
		continuous
		absent

Calculate the medullary index of a hair whose diameter is 110 microns wide and whose medulla measures 92 microns.

1

Is this hair animal or human? Explain (1 sentence).

1

In what direction was drop 2 traveling when it struck the surface?

→

←

↑

↓

1

Select the following antiserums that show a positive reaction with the substance being tested in the middle well.

6

Blood drops 1-3 in the crime scene are impact blood droplets. The area of convergence for blood drops 1-3 are area X₁, X₂, and X₃, respectively. Below are the actual blood drops. You will need to determine the angle at which the blood fell.

null

6

Measure the blood droplets and show your work in the "edit background" section.
Round your final answer to the nearest whole number.

1

2

1

All of the blood at markers 1-4 is A+. Assuming this is the victim's blood, propose an explanation as to how the victim's blood was deposited in these locations.

4

Alternate CSA #2 (Hair and Blood)

Which of the following is NOT a layer of the hair shaft?

A cast of a hair surface can be made using:

The stages of hair growth include all of the following EXCEPT:

Microscopic hair comparisons must be regarded by police and courts as:

Generally, a human hair can be distinguished from an animal hair by examining:

Match the following scale patterns to their proper categories.

Match the medulla patterns to their appropriate descriptions.

Is this hair animal or human? Explain (1 sentence).

In what direction was drop 2 traveling when it struck the surface?

Select the following antiserums that show a positive reaction with the substance being tested in the middle well.

Measure the blood droplets and show your work in the "edit background" section.Round your final answer to the nearest whole number.

All of the blood at markers 1-4 is A+. Assuming this is the victim's blood, propose an explanation as to how the victim's blood was deposited in these locations.

Which of the following is NOT a layer of the hair shaft?

A cast of a hair surface can be made using:

The stages of hair growth include all of the following EXCEPT:

Microscopic hair comparisons must be regarded by police and courts as:

Generally, a human hair can be distinguished from an animal hair by examining:

Match the following scale patterns to their proper categories.

Match the medulla patterns to their appropriate descriptions.

Is this hair animal or human? Explain (1 sentence).

In what direction was drop 2 traveling when it struck the surface?

Select the following antiserums that show a positive reaction with the substance being tested in the middle well.

Measure the blood droplets and show your work in the "edit background" section.Round your final answer to the nearest whole number.

All of the blood at markers 1-4 is A+. Assuming this is the victim's blood, propose an explanation as to how the victim's blood was deposited in these locations.

Measure the blood droplets and show your work in the "edit background" section.
Round your final answer to the nearest whole number.

Measure the blood droplets and show your work in the "edit background" section.
Round your final answer to the nearest whole number.