Y chromosome

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Y chromosome

[′wī ′krō·mə‚sōm]
(genetics)
The sex chromosome found only in the heterogametic male sex, as in mammals and Drosophila.
References in periodicals archive ?
Mitochondrial Eve, Y-Chromosome Adam, and Population Size
Geneticists point out that mitochondrial Eve and Y-chromosome Adam are not synonyms for the biblical Adam and Eve for at least three reasons.
Complexity in paternal heritage exists in most populations beyond just one haplogroup variety of Y-chromosomes participating in a range expansion by agro-pastoralists.
Y-chromosome phylogeography most likely reflects the effects of drift.
Several protocols made use of bovine Y-chromosome sequence derived primers on sheep blood cell DNA, trophoblastic cells to detect the sex of sheep embryos (Rao et al., 1992; Mara et al., 2004).
X- and Y-chromosome specific variants of the amelogenin gene allow sex determination in sheep (Ovis aries) and European rea deer (Cervus elaphus).
The new research focused on the Y-chromosomes of 1,437 men, representatives of 18 ethnic groups in the Mongolian territory.
'On the Y-chromosome the Celtic populations turn out to be statistically indistinguishable from the Basques,' Professor Goldstein said.
A description of the events that led to the initial discovery of the gene responsible for maleness on the Y-chromosome is an important lesson for all scientists.
To obtain more precise information about the origin of the Y-chromosomes in the three above-indicated Canarian-derived populations, four biallelic and three microsatellite loci located in that region were investigated.
A new book called Adam's Curse suggests that men are doomed thanks to the decaying human Y-chromosome, the only piece of DNA that men possess and women do not.
Reporter Tracy Harrison said a father gave his daughter a Y-chromosome - when even me, a 13-year-old, knows that girls don't have Y-chromosomes but have two X- chromosomes.