Y-Chromosome SNPs (Y-SNPs) are prefixed with names assigned to them by research groups.
Family Tree DNA prefixes kit numbers with one or more letters depending on their source.
A short tandem repeat marker.
The Atlantic Modal Haplotype or Western Atlantic Modal Haplotype (WAMH) as Family Tree DNA calls it is the most common haplotype of men in Western Europe.
An NPE is a Non-Paternal Event.
ISOGG YBrowse is the Y-DNA browser maintained by Thomas Krahn.
An INDEL is an insertion/deletion mutation.
An insertion is when one or more extra base pairs is added to the genetic code.
The Y Alu Polymorphism is the best known Alu polymorphism on the Y-chromosome.
A haplotype is a group of Y-STRs that share a haplogroup.