Y-chromosome


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Y-chromosome

the smaller of the two SEX CHROMOSOMES, found in the male of mammals together with one X-CHROMOSOME. Although Y-chromosomes are responsible for SEX DETERMINATION in mammals, very few specific genes have been located. Such ‘Y-linked’ genes (a tentative example is a form of hairy ears in man) would only be inherited down the male line of a family.
References in periodicals archive ?
Cytogenetic abnormalities and Y-chromosome microdeletions in infertile Syrian males.
The same reasoning applies to a common Y-chromosome father.
Increasing the resolution of Y-chromosome analysis that included 75 binary markers and 22 STR markers, Hammer et al.
Looking at the DNA in the Y-chromosome and the mitochondria, we are able to have a fair idea about a person's male and female lines, and possibly where they might have come from.
Screening for Y-Chromosome Microdeletions in a Population of Infertile Males in the Gaza Strip.
Another consideration is that, if Y-chromosome testing is increasingly used, (186) males may be disproportionately represented in DNA databases and partial match searches.
1) The test detects Y-chromosome DNA, which indicates the presence of sperm, up to two weeks after unprotected intercourse.
This document provides a framework for the laboratory to develop Y-chromosome short tandem repeat (Y-STR) interpretation guidelines.
Martinez Cruzado and his team have also completed preliminary but unpublished research on the Y-chromosome of Puerto Rican islanders; however, this research has not received the kind of attention and hyped-up publicity that the mtDNA research has received.