These chromosomes are the bearers of the male and female qualities (or the factors essential to the production of these qualities) respectively. They may also be designated (whenever it is desirable to avoid circumlocution) as sex-chromosomes.
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sex-chromosomeGeschlechtschromosom (ger.)
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A chromosome concerned in determining the sex of an organism, typically one of two kinds. (Oxford Dict. of English 2010)
- 1906
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Wilson, E.B. (1906). Studies on chromosomes, III. The sexual differences of the chromosome-groups in Hemiptera, with some considerations on the determination and inheritance of sex. J. exper. Zool. 3, 1-40: 28.