Podcast
Questions and Answers
What is the primary advantage of using DNA profiling for identification purposes?
What is the primary advantage of using DNA profiling for identification purposes?
- DNA profiling is cheap and readily available.
- DNA profiling is highly specific to individuals, making it a strong tool for identification. (correct)
- DNA profiling doesn't require any prior information about the individual being identified.
- DNA profiling is relatively simple to perform and requires limited equipment.
What percentage of the DNA molecule is used for genetic coding?
What percentage of the DNA molecule is used for genetic coding?
- 1%
- 10% (correct)
- 100%
- 50%
What are 'silent zones' in DNA?
What are 'silent zones' in DNA?
- Regions of DNA that are responsible for regulating gene expression.
- Sections of DNA that are not involved in genetic coding. (correct)
- Areas of DNA that have been damaged or mutated.
- Parts of DNA that code for inactive genes.
Which of these techniques can be used for identification when other methods are not feasible?
Which of these techniques can be used for identification when other methods are not feasible?
Why is contamination a major concern in forensic DNA analysis?
Why is contamination a major concern in forensic DNA analysis?
What is the role of 'standard operating procedures' in preventing contamination in forensic DNA analysis?
What is the role of 'standard operating procedures' in preventing contamination in forensic DNA analysis?
What is the significance of the 'double helix structure' in DNA?
What is the significance of the 'double helix structure' in DNA?
Why is it crucial to wear protective clothing during forensic DNA analysis?
Why is it crucial to wear protective clothing during forensic DNA analysis?
At what stage does the growth of the penis start to increase in breadth?
At what stage does the growth of the penis start to increase in breadth?
What is the primary physical characteristic that marks the onset of puberty in girls?
What is the primary physical characteristic that marks the onset of puberty in girls?
Which Tanner stage corresponds to the development of a breast bud in girls?
Which Tanner stage corresponds to the development of a breast bud in girls?
What physical characteristic is associated with the onset of menarche in girls?
What physical characteristic is associated with the onset of menarche in girls?
At which Tanner stage does the scrotum become darker and larger?
At which Tanner stage does the scrotum become darker and larger?
Which stage is characterized by the presence of few, fine pubic hairs in girls?
Which stage is characterized by the presence of few, fine pubic hairs in girls?
In Stage 4, what is the characteristic appearance of pubic hair in girls?
In Stage 4, what is the characteristic appearance of pubic hair in girls?
Which stage signifies the completion of physical maturation?
Which stage signifies the completion of physical maturation?
Which method is primarily discussed for age estimation based on skeletal remains?
Which method is primarily discussed for age estimation based on skeletal remains?
What does the research suggest about growth and sexual maturation?
What does the research suggest about growth and sexual maturation?
Which scholarly work focuses on the accuracy of fingerprint examiners?
Which scholarly work focuses on the accuracy of fingerprint examiners?
What type of imaging technique is highlighted for age estimation in living individuals?
What type of imaging technique is highlighted for age estimation in living individuals?
What is a key indicator used to estimate age from the remains?
What is a key indicator used to estimate age from the remains?
Which publication focuses on the criteria for age estimation in living individuals?
Which publication focuses on the criteria for age estimation in living individuals?
What aspect does the work of Liversidge and Molleson primarily address?
What aspect does the work of Liversidge and Molleson primarily address?
Why is the study of juvenile osteology significant in forensic science?
Why is the study of juvenile osteology significant in forensic science?
What is the primary purpose of photographing the deceased at the scene?
What is the primary purpose of photographing the deceased at the scene?
Which type of evaluation is needed for social and psychological assessment of age?
Which type of evaluation is needed for social and psychological assessment of age?
What is the significance of retrieving personal items from the deceased's home?
What is the significance of retrieving personal items from the deceased's home?
What determines the range of age estimation in a deceased individual?
What determines the range of age estimation in a deceased individual?
What must be assessed by a qualified clinician for external estimation of age?
What must be assessed by a qualified clinician for external estimation of age?
What happens if the identification evidence does not meet the required standards?
What happens if the identification evidence does not meet the required standards?
Which professionals might be appropriate for the examination of an elderly individual?
Which professionals might be appropriate for the examination of an elderly individual?
Why is having multiple practitioners assess an individual sometimes necessary?
Why is having multiple practitioners assess an individual sometimes necessary?
What was the main focus of the study conducted by Shrestha et al. in 2018?
What was the main focus of the study conducted by Shrestha et al. in 2018?
Which publication discusses the estimation of dental age in adults?
Which publication discusses the estimation of dental age in adults?
What method did Wadhwani et al. study in relation to dental records?
What method did Wadhwani et al. study in relation to dental records?
Which reference provides clinical longitudinal standards for physical growth parameters?
Which reference provides clinical longitudinal standards for physical growth parameters?
Which of the following studies focuses on bitemark casework analysis?
Which of the following studies focuses on bitemark casework analysis?
What does the study by Tabasum et al. relate to in forensic science?
What does the study by Tabasum et al. relate to in forensic science?
Which study introduces a new multiplex-PCR for DNA analysis in forensics?
Which study introduces a new multiplex-PCR for DNA analysis in forensics?
What type of records did Wheeler study concerning physical changes during puberty?
What type of records did Wheeler study concerning physical changes during puberty?
What type of marks on the body can be used to identify a person?
What type of marks on the body can be used to identify a person?
What is the primary use of tattoos and piercings in forensic medicine?
What is the primary use of tattoos and piercings in forensic medicine?
Why is it important to record all visible scars, marks, and deformities on a body?
Why is it important to record all visible scars, marks, and deformities on a body?
Why is appropriate photography of scars, marks, and deformities recommended?
Why is appropriate photography of scars, marks, and deformities recommended?
In the case of a deceased body, what should be taken to aid in identification?
In the case of a deceased body, what should be taken to aid in identification?
When skeletal remains are found, what expert is often needed to assist in identification?
When skeletal remains are found, what expert is often needed to assist in identification?
What is the key factor in utilizing tattoos for identification?
What is the key factor in utilizing tattoos for identification?
When might pre-mortem clinical radiological images be useful ?
When might pre-mortem clinical radiological images be useful ?
Flashcards
DNA Profiling
DNA Profiling
A technique used to identify individuals based on unique DNA characteristics.
Double Helix Structure
Double Helix Structure
The formation of DNA consisting of two strands twisted together.
Genetic Coding
Genetic Coding
The part of the DNA molecule that contains the instructions for building proteins.
Silent Zones
Silent Zones
Signup and view all the flashcards
DNA Contamination Risk
DNA Contamination Risk
Signup and view all the flashcards
Standard Operating Procedures
Standard Operating Procedures
Signup and view all the flashcards
Gait Analysis
Gait Analysis
Signup and view all the flashcards
Facial Profiling
Facial Profiling
Signup and view all the flashcards
Tanner Stage 1
Tanner Stage 1
Signup and view all the flashcards
Tanner Stage 2 Boys
Tanner Stage 2 Boys
Signup and view all the flashcards
Tanner Stage 2 Girls
Tanner Stage 2 Girls
Signup and view all the flashcards
Tanner Stage 3 Boys
Tanner Stage 3 Boys
Signup and view all the flashcards
Tanner Stage 3 Girls
Tanner Stage 3 Girls
Signup and view all the flashcards
Tanner Stage 4 Boys
Tanner Stage 4 Boys
Signup and view all the flashcards
Tanner Stage 4 Girls
Tanner Stage 4 Girls
Signup and view all the flashcards
Tanner Stage 5
Tanner Stage 5
Signup and view all the flashcards
Body Recovery
Body Recovery
Signup and view all the flashcards
Legal Process
Legal Process
Signup and view all the flashcards
Age Estimation
Age Estimation
Signup and view all the flashcards
Identity Standards
Identity Standards
Signup and view all the flashcards
Family Liaison Officer
Family Liaison Officer
Signup and view all the flashcards
Identification Evidence
Identification Evidence
Signup and view all the flashcards
Social Evaluation
Social Evaluation
Signup and view all the flashcards
External Estimation
External Estimation
Signup and view all the flashcards
Stature Estimation Formulae
Stature Estimation Formulae
Signup and view all the flashcards
Dental Age Estimation
Dental Age Estimation
Signup and view all the flashcards
Odontometric Sex Estimation
Odontometric Sex Estimation
Signup and view all the flashcards
Cranial Morphometric Analysis
Cranial Morphometric Analysis
Signup and view all the flashcards
Multiplex-PCR
Multiplex-PCR
Signup and view all the flashcards
Longitudinal Standards for Growth
Longitudinal Standards for Growth
Signup and view all the flashcards
Skeletal Maturity Estimation
Skeletal Maturity Estimation
Signup and view all the flashcards
Antemortem Dental Records
Antemortem Dental Records
Signup and view all the flashcards
Forensic Identification
Forensic Identification
Signup and view all the flashcards
Tattoos in Forensics
Tattoos in Forensics
Signup and view all the flashcards
Importance of Photographs
Importance of Photographs
Signup and view all the flashcards
Surgical Scars
Surgical Scars
Signup and view all the flashcards
Ethnic and Racial Aspects
Ethnic and Racial Aspects
Signup and view all the flashcards
Decomposed Remains
Decomposed Remains
Signup and view all the flashcards
Role of Pathologists
Role of Pathologists
Signup and view all the flashcards
Comparative Radiology
Comparative Radiology
Signup and view all the flashcards
Stature Estimation
Stature Estimation
Signup and view all the flashcards
Cranial Metrics
Cranial Metrics
Signup and view all the flashcards
Age Estimation Techniques
Age Estimation Techniques
Signup and view all the flashcards
Radiographic Age Determination
Radiographic Age Determination
Signup and view all the flashcards
Juvenile Osteology
Juvenile Osteology
Signup and view all the flashcards
Permanent Tooth Length
Permanent Tooth Length
Signup and view all the flashcards
Clavicular Ossification
Clavicular Ossification
Signup and view all the flashcards
Pubertal Changes
Pubertal Changes
Signup and view all the flashcards
Signup and view all the flashcards
Study Notes
Introduction
- Loss of identity is a significant problem in medico-legal settings
- Loss can be deliberate (e.g., concealment for criminal reasons) or unintentional (e.g., disasters)
- Formal identification of bodies is crucial in medico-legal investigations
- Visual identification is often impossible due to factors like trauma, decomposition, or deliberate mutilation
- Governments require systems for rapid identification of casualties in mass disasters
Methods of Identification
- Primary criteria are fingerprints, DNA, and dental records.
- Secondary criteria include medical characteristics, deformities, scars, radiological evidence, personal effects, and clothing.
- The reliability of fingerprint and dental assessments has been questioned in recent times.
DNA Profiling
- DNA profiles are unique to individuals, except for identical twins.
- The DNA molecule is a double helix structure
- Different genetic material is present in silent zones (non-coding regions)
- Forensic genetics is based on Restriction Fragment Length Polymorphisms (RFLP) or more recently Short Tandem Repeats (STR) sequences.
- PCR (polymerase chain reaction) amplifies STR sequences for analysis from a small sample
- DNA comparisons with known family members or databases are used for identification
- Risk of contamination (at crime scenes) is a critical issue in DNA analysis.
Examination of Dental Structures
- Forensic odontology is crucial for identifying unknown bodies even with severe damage.
- Identification relies heavily on antemortem records (from dentists).
- Comparison of the antemortem and postmortem dental records (charts, X-rays) establishes identity.
- Dental charts are sometimes inadequate due to insufficient documentation practices
Fingerprints
- Fingerprints can be used in identification procedures.
- Specialized techniques are used for recovery, especially on damaged bodies.
Morphological characteristics
- Identity is determined by matching features with documented information from living person
- This may include height, weight, BMI, hair colour, beard (or moustache)
- A number of factors that may affect age estimations.
Tattoos and Body Piercings
- Tattoos and body piercings can be used in forensic identification.
- The criteria used for identification rely on design and location.
- Visual identification comparison is often needed with available ante mortem images.
Age Estimation
- Various techniques are used for living people (social/psychological evaluation; external, skeletal, dental).
- Age estimation in the deceased is complex and depends on multiple factors and practitioners.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.