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.
In human genetics, Haplogroup I (M170, P19, M258) is a Y-chromosome haplogroup. Haplogroup I (the letter I, not the number 1) can be found in most present-day European populations, most commonly in Scandinavia, Sardinia, and the Slavic &Bulgarian populations of the Western Balkans in southeastern Europe.