Originally agenda was the plural of agendum, meaning a thing to be done. However, it became applied to a list of things to be done and in this, the most usual modern sense, it has become firmly singular with the plural agendas. Compare with Data.
A haplogroup is a genetic population group of people who share a common ancestor on the patrilineal or matrilineal line. Haplogroups are assigned letters of the alphabet, and refinements consist of additional number and letter combinations.ecause a haplogroup consists of similar haplotypes, it is possible to predict a haplogroup from the haplotype. A SNP test is required to confirm the haplogroup prediction. Not all the testing companies offer SNP testing, and consequently their customers' haplogroup predictions are sometimes inaccurate.
Subgroups have a numeric name which follows the haplogroup name. For example, haplogroup E has two subgroups called E1 and E2. There is also a subgroup E* which belongs to haplogroup E but not either of the defined subgroups. Y-DNA haplogroup is defined as all of the male descendants of the single person who first showed a particular SNP mutation. More information about SNPs at FTDNA. FTDNA also offers Deep Clade tests to confirm your haplogroup assignment and determine where your lineage fits within that haplogroupâs tree.