Question

The presence of two deltas in a fingerprint indicate?

Answer 1

Answer: Whorl pattern.

Explanation: In fingerprint classification, the whorl pattern is one containing two or more deltas which are important in determining the whorl type.

Resembling the Greek letter delta, a delta is the point on a friction ridge at or nearest to the point of divergence of two type lines; as such, a delta is a point in whorl prints that lies within an often triangular, three-pronged or funnel-shaped structure; it is the part of a ridge nearest the point where two parallel ridge lines diverge to flow around the whorls. It is worthy to note it is also the point at which ridge counting begins.

Answer 2

The presence of two deltas indicates a 'plain whorl', a common thing that 24% of people have in common.