REPLICATION OF AUTOSOMAL HETEROCHROMATIN IN MAN
| Autor: | Lima De Faria A, O'sullivan Ma, Reitalu J |
|---|---|
| Rok vydání: | 1965 |
| Předmět: |
DNA Replication
Male Euchromatin Nucleolus Heterochromatin Karyometry macromolecular substances Biology Tritium Chromosomes Prophase Genetics medicine Leukocytes Humans Genetics (clinical) Autosome Research fungi Mouth Mucosa Chromosome DNA Cell biology medicine.anatomical_structure Sex Chromatin Autoradiography Interphase Nucleus Cell Division Cell Nucleolus Thymidine |
| Zdroj: | Chromosoma. 16 |
| ISSN: | 0009-5915 |
| Popis: | In interphase nuclei of leukocytes and oral mucosa cells of normal human males and f males, two types of heterochromatin can he distinguished according to their location in the nucleus. Firstly, nucleolus-associated heterochromatin which consists of one large mass of autosomal segments surrounding the nucleolus, or several large masses if there appears to be more than one nucleolus in the same nucleus. Secondly, scattered heterochromatin composed of a large number of positively heteropycnotic bodies scattered throughout the nucleus and not directly associated with the nucleolus. The correspondence of this type of heterochromatin with chromosome segments is obtained at late prophase where several positively heteropycnotic regions belonging to the autosomes are found scattered throughout the nucleus. |
| Databáze: | OpenAIRE |
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