sex chromosome | Definition, Examples, & Facts ...
Sex chromosome: 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 designated by scientists as X and Y. In humans the sex chromosomes comprise one pair of the total of 23 pairs of chromosomes.
Sex chromosome - Biology-Online Dictionary | Biology ...
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Sex chromosome - Wikipedia
An allosome (also referred to as a sex chromosome, heterotypical chromosome, heterochromosome, or idiochromosome) is a chromosome that differs from an ordinary autosome in form, size, and behavior. The human sex chromosomes, a typical pair of mammal allosomes, determine the sex of an individual created in sexual reproduction.Autosomes differ from allosomes because autosomes appear in pairs ...
Sex chromosome | definition of sex chromosome by Medical ...
sex chromosome or heterosome one of a pair of chromosomes that is different in the two sexes and is involved in SEX DETERMINATION.All remaining chromosomes in a KARYOTYPE are called AUTOSOMES.In most organisms, such as mammals and DIOECIOUS plants, the female contains two identical X-chromosomes and is the HOMOGAMETIC SEX while the male contains one X and one Y-chromosome and is the ...
sex chromosome - dictionary.com
Sex chromosomes definition, a chromosome, differing in shape or function from other chromosomes, that determines the sex of an individual. See more.
Sex-determination system - Wikipedia
The XX/XY sex-determination system is the most familiar, as it is found in humans. The XX/XY system is found in most other mammals, as well as some insects.In this system, most females have two of the same kind of sex chromosome (XX), while most males have two distinct sex chromosomes (XY).
Sex Chromosome - Merriam-Webster
Sex chromosome definition is - a chromosome that is inherited differently in the two sexes, that is concerned directly with the inheritance of sex, and that is the seat of factors governing the inheritance of various sex-linked and sex-limited characters.
Sex Chromosome | Encyclopedia.com
*sex chromosome* A chromosome  whose presence or absence is linked with the sex of the bearer, and that plays a role in sex determination. It is present in all sexually reproducing, diploid  animals and plants.