Hair Evidence Analysis Quiz Crafted by –
Amala K Saj
Introduction to Hair Evidence Analysis
Hair evidence is one of the most common types of evidence encountered in criminal investigations. During the course of the normal hair-growth cycle, hairs are readily lost from individuals, and these hairs may be transferred during the course of criminal activity.
Let's look at the questions and their answers.
Ques 1. Which of the following statement is false?
a) Medullary index of animal hair is 0.3 or more.
b) Curls of pubic hair are different than beared hair.
c) Pubic hair are mostly found at the sex related crime scene.
d) Medullary index of human hair is 0.3 or more.
Answer - d) Medullary index of human hair is 0.3 or more.
Ques 2. Keratins, which are sulphur containing proteins, are interlinked to form stable fibrils and pigment composed of
a) Melanin
b) Creatinine
c) Telogen
d) Nuclease
Answer - a) Melanin
Ques 3. Which of the following preservative is used for preserving hair for DNA analysis?
a) Normal Saline
b) Dimethyl Sulfoxide
c) Rectified Spirit
d) No preservative is required
Answer - d) No preservative is required
Ques 4. Lanugo hairs are
a) Pigmented
b) Thin and soft
c) Medullated
d) Scale pattern is complex
Answer - b) Thin and soft
Ques 5. Microscopic air packets or vacuoles within the cortex of hair is called as
a) Ovoid bodies
b) Protein fibrils
c) Cortical fussi
d) Vacuum pockets
Answer - c) Cortical fussi
Ques 6. Graying hair is as a result of loss of
a) Tyrosinase Activity
b) Proteinase Activity
c) Pectinase Activity
d) Glucomylase Activity
Answer - a)Tyrosinase Activity
Ques 7. In hair growth, the telogen phase may last upto
a) One hundred days
b) Six months
c) Two years
d) Six years
Answer -a) One hundred days
Ques 8. The study of hair is known as
a) Lithology
b) Histology
c) Phytology
d) Trichology
Answer - d) Trichology
Ques 9. Triangular cross-section is seen in which type of hair?
a) Auxiliary hair
b) Beard hair
c) Eye brow hair
d) Scalp hair
Answer - b) Beard hair
Ques 10. Assertion (A): The gray hair may have few or no melanin granules.
Reason (R): In the graying process of hair, there is a gradual loss of tyrosinase activity.
Codes:
a) Both (A) and (R) are correct.
b) (A) is correct but (R) is incorrect.
c) (A) is incorrect but (R) is correct.
d) Both (A) and (R) are incorrect.
Answer - a) Both (A) and (R) are correct.