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:
\( \boxed{B, \; C \; \text{and} \; D} \)
Match List-I with List-II and choose the correct answer:
Match List-I with List-II:
Who said this sentence –
Match List-I with List-II and choose the correct answer: