Buccal Cell

A buccal cell is a type of cell found in cheek tissue inside the mouth.

Biogeographical Analysis

Biogeographical analysis it the study of how an organism varies genetically with respect to its geographic location. In genetic genealogy, we are all part of the human race. For us, biogeographical analysis refers to analyzing [...]

Base Pair

In genetics, nucleotides are called bases. A base pair (bp) is two complementary nucleotides on opposite strands of DNA. Base pairs are measured using metric units.1 base pair = 1 base pair (bp)1,000 base pairs [...]


A base is a unit or building block of DNA. Adenine (A), cytosine (C), guanine, (G), and thymine (T) are the four primary bases in DNA. The order of bases is the sequence of DNA.

Back Mutation

A back mutation is when a marker value changes back to its original value.