For Sex Chromosome we have terms and definitions in 5 topics. The topics are Evolution, Genetics, Genetics and Genealogy, Genome and Huntingtons Disease.

Sex Chromosome (Evolution)

The chromosome or chromosomes that influence sex determination. In mammals, including humans, the X and Y chromosomes are the sex chromosomes (females are XX, males XY). Compare with autosome.

Sex Chromosome (Genetics)

One of two chromosomes in humans that defines sex. There are two sex chromosomes, the X and the Y chromosome. Males have one X and one Y chromosome, while females have two X chromosomes.

Sex Chromosome (Genetics and Genealogy)

One of the two chromosomes that determine an organism's genetic sex. Humans have two kinds of sex chromosomes, one called X and the other called Y. Normal females possess two X chromosomes and normal males one X and one Y. The Y chromosome which makes a child male is thus passed from fathers to sons. The human genome diploid consists of 46 chromosomes. 22 pairs of autosomes and 1 pair of sex chromosomes (the X and Y chromosomes … XX diploid cell = female and XY diploid cell = male). Thus it can be seen that the human genome has 2 sex chromosomes. The sex chromosomes are numbered as the 23rd chromosome pair in a karyotype, which is a photograph of all the chromosomes arranged in a specified order. Compare to Autosome. See Y Chromosome, X Chromosome, and Karyotype.

Sex Chromosome (Genome)

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.
See also: autosome

Sex Chromosome (Huntingtons Disease)

Sex chromosomes determine the sex of an individual. In humans, the two sex chromosomes happen to make up the last (23rd) pair of chromosomes. See Figure B-10.

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