Exam 11 Forensic

Question 1

1. One of these fibers is a product of polymerization;

A. Rayon​​​​
C. Nylon
B. Cotton​​​​
D. Coir

Answer 1

A. Rayon

Question 2

2. When vegetable fibers are irradiated with ultraviolet rays, they exhibit;

A. Yellow fluorescence​
C. Bluish fluorescence
B. Greenish fluorescence​
D. Orange Fluorescence

Answer 2

A. Yellow fluorescence​

Question 3

3. To test acetate silk, burning is done. This

A. Gives up fumes with acid-like odor
B. Produce a white residue
C. A or B
D. None of the above

Answer 3

A. Gives up fumes with acid-like odor

Question 4

4. The four most abundant elements in the earth’s crust are;

A. C,H,O,N​​​
C. O,Si,K,Mg
B. O,Si,Ca,Na​​
D. O,Si,Al,Fe

Answer 4

D. O,Si,Al,Fe

Question 5

5. The pigment in the hair is called;

Answer 5

Melanin and Phaeomelanin

Question 6

6. The central canal of the hair is called;

A. Cuticle​​​
C. Cortex
B. Lanugo
​​D. Medulla

Answer 6

Medulla

Question 7

7. Blood is a red fluid in the body that contains;

Answer 7

Plasma​​​ and Formed elements

Question 8

8. The technique that does not destroy the material it analyze is;

A. Electrophoresis​​
C. Spectrography
B. Laser Technique​​
D. X-ray diffraction analysis

Answer 8

D. X-ray diffraction analysis

Question 9

9. A problem regarding semen is individualization. This can be solved by the crime laboratory by the technique of;

A. Fingerprinting
​​C. DNA typing
B. Barbeto’s test​​
D. Florence test

Answer 9

​​C. DNA typing

Question 10

10. The organelle that is the powerhouse of the spermatozoon is the;

A. Mitochondria
​​C. Flagellum
B. Nucleus​​
D. Enzyme product

Answer 10

A. Mitochondria