Blood-Grouping from Stains (Lattes, Absorption-Elution, Absorption-Inhibition, Mixed Agglutination): Application (UGC-NET Unit III)
Published:
Questions
30
Duration
30 min
Faculty-reviewed
0
Updated
17 May 2026
About this mock
UGC-NET Forensic Science Unit III drill on classical ABO grouping from dried bloodstains and secretion stains at the application band. Each scenario asks the candidate to pick the appropriate stain serology technique or interpret a serological result, covering the Lattes crust test for fresh stains, absorption-elution for aged stains on fabric, absorption-inhibition titration for antigen quantitation, mixed agglutination for intact-fibre antigen detection, secretor classification on saliva and vaginal swabs through the Lewis and ABH systems, presumptive-to-confirmatory workflow on biological stains, and the modern transition from ABO stain typing to STR DNA profiling in Indian CFSL and DFSS casework.
Sources & references
Questions in this mock are written and verified against the following sources. Citations are recorded per question and shown in the explanation after submission.
- cited in 14 questions
Gaensslen R E, Sourcebook in Forensic Serology, Immunology and Biochemistry
Chapter 5, AE read on matched group A and group B indicator red cells
Open source - cited in 4 questions
Directorate of Forensic Science Services (DFSS), Manual of Forensic Serology and DNA
Introduction and scope, central SOP for Indian Central FSLs and State FSLs
Open source - cited in 3 questions
Bureau of Police Research and Development (BPR&D), Indian Serology Manual
Section on the bench cascade for bloodstain identification and grouping on dark substrates
Open source - cited in 3 questions
Daniels G, Human Blood Groups, 3rd edition
Chapter on the Lewis system and ABH secretor status, FUT2 and FUT3 control
Open source - cited in 3 questions
Saferstein R, Criminalistics: An Introduction to Forensic Science, 12th edition
Chapter on forensic serology, mixed agglutination on intact fibres with indicator red cells
Open source - cited in 2 questions
Butler J M, Fundamentals of Forensic DNA Typing, Academic Press
Chapter on validated multiplex STR kits for forensic individualisation, capillary electrophoresis on the ABI 3500
Open source - cited in 1 question
Lattes L, L'Individualita del Sangue nella Biologia, nella Clinica e nella Medicina Legale
Istituto di Medicina Legale, Turin, 1932; first comprehensive monograph on individuality of blood for forensic purposes
Open source
How our mocks are built
Questions are written and edited by the ForensicSpot team and cited from peer-reviewed forensic textbooks, official syllabi and primary case law. Each one is verified before publishing. Detailed explanations show after you submit, so the test stays a real test. See a mistake? Tell us.
Common questions
What does the Blood-Grouping from Stains (Lattes, Absorption-Elution, Absorption-Inhibition, Mixed Agglutination): Application (UGC-NET Unit III) mock cover?+
UGC-NET Forensic Science Unit III drill on classical ABO grouping from dried bloodstains and secretion stains at the application band. Each scenario asks the candidate to pick the appropriate stain serology technique or interpret a serological result, covering the Lattes crust test for fresh stains, absorption-elution for aged stains on fabric, absorption-inhibition titration for antigen quantitation, mixed agglutination for intact-fibre antigen detection, secretor classification on saliva and v
How many questions and how long is the test?+
30 multiple-choice questions, 30 minutes total. Difficulty: medium. Tier: Premium.
Who is this mock for?+
Forensic science students and aspirants who want timed, exam-style practice with explanations and verified source citations on NET. Useful for postgraduate entrance preparation and for BSc / MSc forensic students testing their recall under time.
Are the questions reviewed?+
Each question carries a verified source citation. Faculty review for individual questions is in progress.
Do I need an account to take this mock?+
Yes, a free ForensicSpot account is required to start a timed attempt — this lets you save progress, see per-question explanations after submission, and track your topic-level performance over time.