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
A chromosome reckoned as the second in various classifications; now disused.
(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 circular chromosome or pair (or larger group) of chromosomes found as part of the normal karyotype of an organism or developing gamete.
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
A chromosome that differs in form or behaviour from the usual chromosomes of a species; (in early use) especially a sex chromosome or B chromosome.
(Originally) a synthetic nucleic acid sequence designed to mimic the structure and behaviour of a chromosome; (now usually) a nucleic acid sequence into which an artificial or modified gene, or a fragment of a natural genome which is being studied, can be maintained, reproduced, and manipulated within a carrier such as a bacterial or yeast cell.
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