Question

which statement is true about fingerprints?
a the chance of matching prints is 1 in 1 billion.
b they are found only on oily surfaces.
c only identical twins have matching prints.
d no two people have the same prints.

Explanation:

• Option A: The probability of matching fingerprints is much lower than 1 in 1 billion. In fact, no two people (even identical twins) have the same fingerprints.
• Option B: Fingerprints can be found on various surfaces, not just oily ones. Techniques like dusting for latent prints work on many non - oily surfaces.
• Option C: Identical twins do not have matching fingerprints. While they share a lot of genetic material, the development of fingerprints in the womb is influenced by environmental factors in the womb (such as pressure gradients) that are unique even for twins.
• Option D: This is a fundamental principle of fingerprint science. Each person's fingerprint pattern (loop, whorl, arch and the detailed ridge characteristics) is unique.

Answer:

D. No two people have the same prints.