Abstract
The normal human chromosome number is 46, 22 pairs of autosomes and two X chromosomes or an X and a Y chromosome. The G group contains the two smallest pairs of chromosomes, numbered 21 and 22. The occurrence of an extra chromosome in this group is called trisomy G and this phenomenon is present in all cells in patients with Down’s syndrome.
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© 1971 Springer Science+Business Media Dordrecht
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Sachs, E.S. (1971). Introduction. In: Trisomy G/Normal Mosaicism. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2956-8_1
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DOI: https://doi.org/10.1007/978-94-010-2956-8_1
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-207-0311-5
Online ISBN: 978-94-010-2956-8
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