Quiz on Forensic Biology

1. What is the primary function of DNA in forensic biology?

Protein synthesis Identification of individuals Determination of sex Detection of diseases

2. What is the term for the study of insects in forensic investigations?

Botany Entomology Osteology Serology

3. Which component of blood is primarily used in forensic analysis?

Red blood cells Platelets Serum White blood cells

4. Which type of DNA is most commonly analyzed in forensic biology?

Mitochondrial DNA Ribosomal DNA Chromosomal DNA Plasmid DNA

5. Which enzyme is used in DNA amplification during PCR?

Amylase Taq polymerase Restriction enzyme Ligase

6. Which blood group system is most commonly used in forensic analysis?

ABO system Rh system Kell system MNS system

7. What is the term for the stiffening of the body after death?

Livor mortis Algor mortis Rigor mortis Pallor mortis

8. Which protein in blood helps in the identification of species?

Albumin Hemoglobin Fibrinogen Myosin

9. Which type of evidence can mitochondrial DNA (mtDNA) be useful for?

Paternal lineage identification Maternal lineage identification Y-chromosome analysis Protein synthesis studies

10. Which of the following is NOT a biological evidence?

Hair Fiber Saliva Semen

11. What is the purpose of STR analysis in forensic science?

To analyze long sequences of DNA To amplify DNA samples To analyze short repetitive sequences in DNA To study mitochondrial inheritance

12. Which of the following is a technique for DNA separation?

Electrophoresis Spectroscopy Chromatography Microscopy

13. What is the main advantage of mitochondrial DNA in forensic analysis?

It is found only in blood samples It is inherited from both parents It is more abundant in cells It mutates frequently

14. Which bodily fluid is often analyzed for drug presence in forensic cases?

Saliva Sweat Blood Tears

15. What is the significance of loci in forensic DNA profiling?

They are used to identify the sequence of proteins They refer to locations of genes or markers on chromosomes They represent non-coding RNA They are unique to mitochondrial DNA

16. What is the term for the decomposition of body tissues caused by bacteria?

Putrefaction Mummification Adipocere formation Desiccation

17. What is a common method for collecting biological evidence at a crime scene?

Using adhesive tape Scraping with a scalpel Swabbing with sterile cotton Soaking with alcohol

18. Which organelle contains DNA besides the nucleus?

Endoplasmic reticulum Ribosome Mitochondria Golgi apparatus

19. What is the function of hemoglobin in forensic analysis?

Determining blood type Transporting oxygen in blood Species identification DNA profiling

20. Which biological evidence is least likely to contain DNA?

Blood Saliva Urine Semen

21. What is the primary purpose of using luminol in forensic biology?

To detect bloodstains To amplify DNA To preserve biological samples To determine time of death

22. Which part of hair is most commonly used for DNA analysis?

Hair shaft Hair follicle Hair medulla Hair cuticle

23. What is the role of alleles in forensic DNA profiling?

Determining blood type Identifying genetic variations Detecting bacterial DNA Analyzing protein synthesis

24. What does the term "phenotype" refer to in forensic biology?

The genetic makeup of an individual The observable characteristics of an individual The mitochondrial DNA profile The Y-chromosome markers

25. Which technique is used to determine the age of a skeleton?

Radiocarbon dating DNA sequencing STR analysis Bone density analysis

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