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Definition of X chromosome in English: X chromosomenoun Genetics (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). Compare with Y chromosome Example sentencesExamples - The largest cluster of imprinted genes in humans is the X chromosome.
- In contrast to the autosomes, recombination of the X chromosome occurs only in females.
- Remarkably, almost all of these traits map genetically to the X chromosome.
- In most species males carry a single X chromosome and two autosomes, while females have two copies of both.
- Analysis of males for most loci allowed these loci to be mapped to autosomes or the X chromosome.
Definition of X chromosome in US English: X chromosomenounˈɛks ˌkroʊməˌsoʊm Genetics (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). Compare with Y chromosome Example sentencesExamples - Remarkably, almost all of these traits map genetically to the X chromosome.
- Analysis of males for most loci allowed these loci to be mapped to autosomes or the X chromosome.
- In most species males carry a single X chromosome and two autosomes, while females have two copies of both.
- The largest cluster of imprinted genes in humans is the X chromosome.
- In contrast to the autosomes, recombination of the X chromosome occurs only in females.
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