Look up: Sex Chromosome

1. sex chromosome
   [n] - a chromosome that determines the sex of an individual
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Sex chromosome
   Sex chromosome: The X chromosome or the Y chromosome, in humans. The sex chromosomes determine the sex of an individual. As a general rule, normal females have two X chromosomes while normal males have an X and a Y chromosome. The sex chromosomes evolved from an ancient pair of autosomal chromosomes...
   Found on http://www.medterms.com/script/main/art.
   
   
3. sex chromosome
   Chromosome that determines the sex of an animal. In humans, where the two sex chromosomes (X and Y) are dissimilar, the female has two X chromosomes, and the male is heterogametic (XY). In birds, the opposite is the case, the male being XX and the female XY; in many organisms, there is only one sex chromosome, and one sex is XX, the other X0. A portion of the X and Y chromosomes is similar and is known as the pseudoautosomal region.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
4. sex chromosome
   <genetics> Chromosome that determines the sex of an animal. In humans, where the two sex chromosomes (X and Y) are dissimilar, the female has two X chromosomes and the male is heterogametic (XY). ... <zoology> In birds, the opposite is the case, the male being XX and the female XY, in ma...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. sex chromosome
   noun (genetics) a chromosome that determines the sex of an individual; `mammals normally have two sex chromosomes`
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
6. sex chromosome
   either of a pair of chromosomes that determine whether an individual is male or female. The sex chromosomes of human beings and other mammals are ... [13 related articles]
   Found on http://www.britannica.com/eb/a-z/s/71
   
   
7. Sex chromosome
   The X or Y chromosome in human beings that determines the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome. The sex chromosomes comprise the 23rd chromosome pair in a karyotype.
   Found on http://www.ornl.gov/sci/techresources/Hu
   
   
8. Sex Chromosome
   A chromosome that has a major role in determining the sex of an individual. Normally, females have two X chromosomes and males have one Y chromosome and one X chromosome.
   Found on http://www.pregnology.com/AZ/S/3
   
   
9. sex chromosome
   Chromosome that differs between the sexes and serves to determine the sex of the individual. In humans, whether a person is male or female is determined by the combination of the two sex chromosomes in the body cells. In females both chromosomes are the same – two X chromosomes (XX). In males the two chromosomes are different – one X chro...
   Found on http://www.talktalk.co.uk/reference/ency
   
   
10. Sex chromosome
    The X or Y chromosome in human beings that determines the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome. The sex chromosomes comprise the 23rd chromosome pair in a karyotype.
    Found on http://www.ornl.gov/sci/techresources/Hu