a thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
(in humans and other mammals) a sex chromosome, two of which are normally present in female cells (designated XX) and only one in male cells (designated XY)
(in humans and other mammals) a sex chromosome which is normally present only in male cells, which are designated XY
a diagram showing the relative positions of genes along the length of a chromosome
a chromosome concerned in determining the sex of an organism, typically one of two kinds
the characteristic number of chromosomes found in the cell nuclei of organisms of a particular species
an abnormal small chromosome sometimes found in the leucocytes of leukaemia patients
the phenomenon in a female mammal whereby the genes in one of the pair of X chromosomes are silenced, with the result that their effects are equivalent to those in the male, with only a single X chromosome