Question
A DNA system that is used to trace ancestral lineage in forensic science is called:
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
Alu repeats
DNA System for Ancestral Lineage in Forensics
The question asks to identify the specific DNA system used for tracing ancestral lineage in forensic science.
Understanding Alu Repeats for Lineage Tracing
Alu repeats are specific sequences within the human genome that belong to the SINE (Short Interspersed Nuclear Element) family. These sequences are known for their high copy number and varying insertion patterns across different populations.
- Role in Ancestral Lineage: The unique insertion patterns of Alu repeats are inherited and can be traced through generations. This makes them valuable markers for studying ancestral lineage and population genetics.
- Forensic Application: In forensic science, analyzing Alu repeats can help determine the geographic origins or ethnic background of individuals, aiding in identification and relationship testing.
Analyzing Other Options
- Adipocere: This term refers to a waxy substance formed during decomposition, unrelated to DNA analysis or lineage tracing.
- Lineage detection: This is a general description of the process, not a specific DNA system or element.
- Latent ancestry: This phrase is not a recognized scientific term for a DNA-based method used in forensics.
Consequently, Alu repeats serve as the key DNA system for tracing ancestral lineage in forensic contexts.
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