Replication Patterns of Bovine Sex Chromosomes in Cell Culture
- 1 January 1964
- journal article
- Published by S. Karger AG in Cytogenetic and Genome Research
- Vol. 3 (2-3) , 135-142
- https://doi.org/10.1159/000129804
Abstract
A study of sex chromosome replication in euploid bovine cell cultures is presented. Both X chromosomes in the female replicate their DNA throughout most of the cell’s DNA synthetic period. However, one X (late X) continues its replication later than its homologue (early X). This late X is one of the last chromosomes in the complement to terminate replication. In the male, the DNA replication pattern of the X chromosome is like that of the early X in the female, while the Y chromosome begins its replication later than any chromosome in the complement (by two or more hours), and finishes replication just after the X.Keywords
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