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Variations in rat liver chromatin composition during growth and the heterotic response

✍ Scribed by R. B. Naso; F. T. Baker; W. Kaczmarczyk; V. Ulrich

Publisher
Springer
Year
1976
Tongue
English
Weight
591 KB
Volume
14
Category
Article
ISSN
0006-2928

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✦ Synopsis

The manifestation of hybrid vigor with regard to the inheritance of body weight was established as a postweaning phenomenon in rats. Liver weight gain generally corresponded to body weight gain and also reflected hybrid vigor. The protein/DNA ratios of the chromatin from livers of inbred and heterotic hybrid male rats were found to increase with increasing age in growing rats. Hybrid chromatin had higher protein/DNA ratios throughout the age range studies. The difference between hybrids and inbreds were greatest in the early postweaning stages of growth and maturation. The RNA/DNA ratios of chromatin from livers of inbred and hybrid male rats were also found to exhibit trends within certain developmental periods.

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