Forensic Biology

Forensic Biology Quiz Crafted by-

 Ankit Tripathi

Scientific Officer, SIFS INDIA, New Delhi

Introduction to Forensic Biology

Forensic biology and serology is a branch of forensic science which deals with biological evidences and their examination. The examination of biological materials play an important role in connecting the criminal with the crime. Such biological specimens may be in the form of body fluids, stains or other material. Crime Laboratories routinely process evidence from criminal cases for the presence of biological fluids such as blood, semen, and saliva in order to obtain DNA profiles. Forensic Biology encompasses both Forensic Serology and DNA testing. Forensic biology division deals with the examination of biological fluids, skeletal remnants, diatoms, hair, seeds, maggots, vegetable fibres, wood etc. present in various items of evidentiary value in crime cases such as murder, attempt to murder, sexual assault and child abuse.

 Let's look at the questions and their answers:

Ques 1. ___ is a national database comprised of several indexes including DNA profiles of convicted offenders, profiles developed from evidence in unsolved crimes, and profiles developed for the identification of missing persons.





Answer- b) CODIS


Ques 2. The total number of torsal bones in a person aged 12 years is

a) 7                                                     

b) 3

c) 9                                                  

d) 4

Answer- a) 7                                                     


Ques 3. The suitable control sample in case of blood stained soil is usually taken within the distance of

a) 10 inches                                                     

b) 5 inches

c) 3 inches                                           

d) 5 foot

Answer- c) 3 inches


Ques 4. Semen sample having no sperms is called

a) Histospermic                                                     

b) Hematospermic

c) Oligospermic                                                    

d) Aspermic

Answer- d) Aspermic


Ques 5. Scales are found on the following fibre:

a) Cotton                                                      

b) Silk

c) Wool                                                       

d) Linen

Answer- c) Wool                                                       


Ques 6. Erythrocyte Acid Phosphatase (EAP), enzyme is detected only in:

a) WBCs

b) Plasma

c) Cortex

d) RBCs

Answer- d) RBCs


Ques 7. ABO blood grouping is based on

a) Red Cell Enzyme

b) Red Cell Antigen

c) Plasma Proteins

d) HLA

Answer- b) Red Cell Antigen


Ques 8. Human hair differs from animal hair by that

a) Medulla is thick                                                     

b) Pigment is central

c) Cuticle has scales                                                       

d) Medulla is broader than cortex

Answer- c) Cuticle has scales


Ques 9. Identical twins may not have

a) Same blood group                                                     

b) Same fingerprint pattern

c) Same DNA fingerprint                                                       

d) Same HLA system

Answer- b) Same fingerprint pattern


Ques 10. Best specimen of bone for sex determination is

a) Femur                                                     

b) Skull

c) Mandible                                                       

d) Pelvis

Answer- d) Pelvis


Ques 11. Which of the following is the correct sequence of examination of an unknown blood stain?

a) Spectroscopic Examination, Benzidine Test, Hemochromogen Test, Absorption Inhibition

b) Absorption Inhibition, Benzidine Test, Spectroscopic Examination, Ring Assay

c) Kastle-Mayer Test, Teichmann Test, Oakley- Fulthrope Method, Mixed Agglutination Test

d) Latteā€™s Crust Method, Absorption Elution Methods, Single Diffusion Assay, RNA-based Assays

Answer- c) Kastle-Mayer Test, Teichmann Test, Oakley- Fulthrope Method, Mixed Agglutination Test


Ques 12. The Absorption Elution method for blood stains examination was first introduce by:

a) Zeltsch

b) Fiori

c) Siracusa

d) Coombs

Answer- c) Siracusa


Ques 13. Personal identification process from blood and RBC enzymes is based upon their

a) Mutation

b) Hybridization

c) Polymorphism

d) Polymerisation

Answer- c) Polymorphism


Ques 14. Gerald Edelman and Rodney Porter shared a Nobel prize in 1972 for revealing the structure of

a) Immunoglobulins

b) Immunogens

c) Haemoglobin

d) Spermatozoa

Answer- a) Immunoglobulins


Ques 15. ________ is used in place of Luminol test to detect the bloodstain.

a) Blue Whale

b) Copper Sulphate

c) Cupric Sulphate

d) Bluestar

Answer- d) Bluestar


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