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11 Cards in this Set

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Polygenic AKA multifactorial inheritance

Example
When two or more genes and their interaction with the environment contribute to a trait

Fingerprint ridge count!
Dermatoglyphics
Studies ridge counts on fingers and toes
What is this ridge pattern?
What is this ridge pattern?
Whorl
What is this ridge pattern?
What is this ridge pattern?
Tented arch
What is this ridge pattern?
What is this ridge pattern?
Loop
What is this ridge pattern?
What is this ridge pattern?
Arch
What is this ridge pattern?
What is this ridge pattern?
Double loop whorl
Triradius
AKA
Which pattern has 2 of these?
AKA delta

Where 3 ridges meet at a 120 degree angle

The whorl has 2
Core
A single ridge surrounded by many ridges
Ulnar loop vs. radial loop
Ulnar = when ridges open toward little finger

Radial = when ridges open towards the thumb
How to count ridges for:
Arch
Loop
Whorl
Arch = ridge count is 0
Loop = count from triradius to core
Whorl = count to both triradii, and use the higher number