Sentences with phrase «ancestor y years»

Not exact matches

Applying equivalent methodologies to the Y chromosome and the mitochondrial genome, we estimate the time to the most recent common ancestor (TMRCA) of the Y chromosome to be 120 to 156 thousand years and the mitochondrial genome TMRCA to be 99 to 148 thousand years.

Seventy percent of the Jewish men and half of the Arab men inherited their Y chromosomes from the same set of paternal ancestors who lived in the Middle East within the last few thousand years.

The researchers calculate that the Y chromosomes carried by modern men are versions of the Y chromosome carried by a common ancestor who lived in Africa about 59,000 years ago, they report in the November issue of Nature Genetics.

This suggests that the Y chromosome has undergone «extraordinary» remodeling in both species in the 6 million years or so since they split from a common ancestor, says geneticist David Page, director of the Whitehead Institute of the Massachusetts Institute of Technology in Cambridge.