Sentences with phrase «chimpanzee y»
By using human and chimpanzee Y chromosomes as a genetic fossil record to examine our past, scientists have seen a surprising difference in the way the male - making chromosomes from the two species...
http://www.hhmi.org/
They found that the chimpanzee Y chromosome has lost lots of genes that are present in humans, which suggests the human Y resembles that of the common ancestor more than does the chimp's Y. Chimpanzees only have two - thirds of the genes present in the human MSY.
A quick look at the chimpanzee Y chromosome by Page's MIT colleague, Steve Rozen, revealed similar coding, although spelled slightly differently.
However, the chimpanzee Y chromosome appears to have undergone more changes in the number of genes and contains a different amount of repetitive elements compared to the human or gorilla.
«Surprisingly, we found that in many ways the gorilla Y chromosome is more similar to the human Y chromosome than either is to the chimpanzee Y chromosome,» said Kateryna Makova, the Francis R. and Helen M. Pentz Professor of Science at Penn State and one of two corresponding authors of the paper.
Moreover, a greater proportion of the gorilla Y sequences can be aligned to the human than to the chimpanzee Y chromosome.»
Not exact matches
But the first comprehensive comparison of the Y chromosome in two species — specifically, humans and chimpanzees — shows that in fact, it is a hot spot of evolution.
Chimpanzee (Pan troglodytes) brain samples were collected postmortem from five adult specimens (23 Y female, 31 Y female, 31 Y male, 27 Y male, 23 Y male).
High - quality Y - chromosome sequences are available for human and chimpanzee (and low - quality for gorilla).