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Sex Chromosome
Sex Chromosome
Sex Chromosome
Sex Chromosome
Sex Chromosome

The following information is about Sex Chromosome.

Sex Chromosome Defined

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.

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  • Pas de Deux of Sexuality Is Written in the Genes: When it comes to the matter of desire, evolution leaves little to chance. Human sexual behavior is not a free-form performance, biologists are finding, but is guided at every turn by genetic programs. Skip to next paragraph Enlarge This Image John Hers

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