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Purdom studied at Cedarville University, graduating in 1994, [1] before going on to get a PhD in molecular genetics from Ohio State University. [5] She was an associate professor of biology at Mount Vernon Nazarene University before joining Answers in Genesis.
The Y chromosome is one of two sex chromosomes in therian mammals and other organisms.Along with the X chromosome, it is part of the XY sex-determination system, in which the Y is the sex-determining chromosome because the presence of the Y chromosome causes offspring produced in sexual reproduction to be of male sex.
The Y-chromosomal most recent common ancestor is the most recent common ancestor of the Y-chromosomes found in currently living human males.. Due to the definition via the "currently living" population, the identity of a MRCA, and by extension of the human Y-MRCA, is time-dependent (it depends on the moment in time intended by the term "currently").
The Y-chromosome is one of the 23rd pair of human chromosomes. Only males have a Y-chromosome, because women have two X chromosomes in their 23rd pair. A man's patrilineal ancestry, or male-line ancestry, can be traced using the DNA on his Y-chromosome (Y-DNA), because the Y-chromosome is transmitted from a father to son nearly unchanged. [31]
While all human chromosomes contain repeats, more than 30 million letters of the Y chromosome — out of 62.5 million — are repetitive sequences, sometimes called satellite DNA or junk DNA.
A Y-DNA test ranges from 10 to 111 markers on the Y chromosome. Most surname projects suggest at least 25 markers. Test results tell how many repeats a given subject has at a particular marker; the variations of repeats are known as alleles.
Pages in category "Genes on human chromosome Y" The following 29 pages are in this category, out of 29 total. This list may not reflect recent changes. ...
Answers Research Journal (ARJ) is an open-access creation science journal published by Answers in Genesis (AiG), a fundamentalist Christian apologetics organization. [1] Founded in 2008, the online journal devotes itself to research on "recent Creation and the global Flood within a biblical framework".