either, not until they checked their mitochondrial DNA. Ditto Chinese Jews. Fortunately, not all of them want to emigrate to Israel.

You have a link?

on the DNA Project.

A subsequent study in 2000 found that a substantial number of Lemba men carry a particular haplotype of the Y-chromosome known as the Cohen modal haplotype (CMH), as well as, a haplogroup of Y-DNA Haplogroup J found amongst some Jews, but also in other populations across the Middle East and Arabia.[45][46] The genetic studies have suggested that there is no Semitic female contribution to the Lemba gene pool.[47] This indicates that Jewish men migrated to Africa in ancient times and took wives from among the local people after settling in new communities.

Among Jews the CMH marker is most prevalent among Jewish Kohanim, or hereditary priests. As recounted in Lemba oral tradition, the ancestor of the Buba clan "had a leadership role in bringing the Lemba out of Israel" and eventually into Southern Africa.[48] The genetic study found that 50% of the males in the Buba clan had the Cohanim marker, a proportion higher than in the general Jewish population.[49] While not defining the Lemba as Jews, the genetic results confirm the oral accounts of ancestral males originating from outside Africa, and specifically from southern Arabia.[50]

More recently, Mendez et al. (2011) observed that a moderately high frequency of the studied Lemba samples carried Y-DNA Haplogroup T, which is also considered to be of Near Eastern origin. The Lemba T carriers belonged exclusively to T1b*, which is rare and was not sampled in indigenous Jews of the Near East or North Africa. T1b* has been observed at low frequencies in the Bulgarian and Ashkenazi Jews as well as in a few Levantine populations.

http://en.wikipedia.org/wiki/Lemba_people