How To Identify A Body

Question 1

How do finger prints help identify a dead body

Answer 1

Fingerprints help identify a dead body because they are
Unique to individual
Do not change over lifetime
Even identical twins have different fingerprints
Sweat and oil secretions leave impressions on surfaces

Question 2

When could fingerprints be unreliable

Answer 2

Fingerprints could be unreliable if they have no fingerprint gene mutation.

Question 3

What does DNA profiling rely on

Answer 3

DNA profiling relies on the fact that every persons DNA is unique (except identical twins)

Question 4

What are introns

Answer 4

Introns are blocks of DNA that don’t code for proteins (intragenic regions)

Question 5

What are Exons

Answer 5

Exons are blocks of DNA that code for proteins (extragenic regions)

Question 6

What is DNA like in introns

Answer 6

In introns, short DNA sequences are repeated many times. Sequences of repeated bases are short tandem repeats (STR) or satellites.