U4a: found in Mesolithic Serbia and Karelia, Neolithic Ukraine, Chalcolithic Bulgaria.
U4 is found at a frequency ranging from 2% to 6% in most regions of Europe. Its highest frequency is observed among the Chuvash (16.5%), Bashkirs (15%) and Tatars (7%) of the Volga-Ural region of Russia, followed by Latvia (8.5%), Georgia (8.5%), Serbia (7%), and southern Daghestan (6.5%). Generally speaking, U4 is more common in Baltic and Slavic countries and around the Caucasus than anywhere else. Within Europe U4 is rarest in fringe regions such as Ireland (1.5%), Portugal (1.5%), north-west Spain (0.5%, except Cantabria which has 3%), Finland (1%), and especially among the Welsh, Sardinians and Saami, where it is completely absent.
Outside Europe and the Caucasus, U4 is found especially in Iran (3%) and throughout Central Asia, particularly in Kyrgyzstan (3%), Turkmenistan (3%), Uzbekistan (2.5%) and Kazakhstan (2%), but also in parts of Siberia, notably in the Altai Republic (5%) and among the speakers of the Khanty and Mansi languages (12%), east of the Ural mountains. U4 is also found at high frequencies in some ethnic groups in Pakistan and Afghanistan, including among the Balochi (2.5%), Hunza Burusho (4.5%), Hazaras (8%), Parsi (13.5%) and especially among the Kalash (34% according to Quintana-Murci et al. 2004), although these frequencies have to been taken cautiously as they are based on very small sample sizes.
This is matrilineal line from africa haplogrpup L to baltic area vestland in norway 5000AD female was from vestland norway which is baltic area of scandinavia whoch is also haplogroup K mean Haplogrpup K is subclade to U8 haplogrpoup.and U haplogrpup derived from haplogrpup R which is male and female line mean R is common ancestor.
The female mtdna U4a met with native people of north and they seem interbread together and also rhey met with icelanding people uk and also with eastern europeans.
L TO U4a to U8 to K.
Mitrochondrial eve was askenazy jew.