Question:

A DNA Expert in a forensic science laboratory confirms:
A. Toxin in exhibit
B. Age of individual
C. Identity of an individual
D. Gender of an individual
E. Height of an individual

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Remember, standard forensic DNA profiling answers two main questions: \textbf{"Who is it?"} (Identity) and \textbf{"Is it male or female?"} (Gender). It doesn't tell you age, height, or what substances they've ingested.
Updated On: Sep 23, 2025
  • A, B and E
  • B, C and E
  • B, C and D
  • A, C and E
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The Correct Option is C

Solution and Explanation

Step 1: Role of DNA in forensics
DNA profiling is primarily used for: 
• Establishing identity of an individual with high accuracy. 
• Determining gender (XX vs. XY chromosomes). 
• In some cases, estimating age through DNA methylation studies or telomere length analysis (though approximate). 

Step 2: Evaluate each option
- A. Toxin in exhibit ❌ — This is done by toxicology/chemical analysis, not DNA profiling. 
- B. Age of individual ✅ — DNA methylation patterns can indicate approximate age. 
- C. Identity of an individual ✅ — The main function of forensic DNA analysis. 
- D. Gender of an individual ✅ — Determined by presence of XX (female) or XY (male) chromosomes. 
- E. Height of an individual ❌ — Though some genes influence height, forensic DNA experts do not confirm it. 

Step 3: Correct combination
Therefore, the DNA expert confirms: 
\( B \; (\text{Age}), \; C \; (\text{Identity}), \; D \; (\text{Gender}) \). 

Final Answer: 
\( \boxed{B, \; C \; \text{and} \; D} \) 

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