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Sister chromatid exchanges in cultured peripheral lymphocytes from twins

✍ Scribed by C. Pedersen; Eva Oláh; U. Merrild


Publisher
Springer
Year
1979
Tongue
English
Weight
690 KB
Volume
52
Category
Article
ISSN
0340-6717

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✦ Synopsis


Sister chromatid exchange points (SCE points) on individual chromosomes were studied in cultured lymphocytes from 11 monozygotic (MZ) and nine dizygotic (DZ) same-sexed pairs by means of sequential Q-banding and BUdR-Giemsa techniques. No statistically significant variation between unrelated individuals with respect to SCE points on specific chromosomes was found. Intrapair differences in the number of SCE points on specific chromosomes were not significantly smaller between MZ twin partners as compared with DZ partners. The results suggest that genetic factors do not play any major role in the frequency and distribution of SCE in normal subjects.


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