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Population genetics for Y-chromosomal STRs haplotypes of Chinese Tujia ethnic group

Meisen Shi1, Rufeng Bai, Lihua Wan

  • 1Institute of Evidence Law and Forensic Science, China University of Political Science and Law, Beijing, PR China. shimeisen2000@yahoo.com.cn

Forensic Science International. Genetics
|December 17, 2008
PubMed

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Among mammals, the gender of an organism is determined by the sex chromosomes. Humans have two sex chromosomes, X and Y. Every human diploid cell has 22 pairs of autosomes and one pair of sex chromosomes. A human female has two X chromosomes, while a male has one X chromosome and one Y chromosome.
The germline cells such as egg and sperm cells carry only half the number of chromosomes, i.e., 22 autosomes and one sex chromosome. All eggs have an X chromosome, while sperm cells can carry an X or...
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