Emil Heitz (1892-1965): chloroplasts, heterochrotamin, and polytene chromosomes

Article Abstract:

Emil Heitz made important contributions to gentics with his role in the discovery of chloroplasts, heterochromatin and polytene chromosomes in Diptera. Heitz discovered a new method of synthesis of heterochromatin from Diptera tissues. Heitz also discovered the heterochromaticity of identical chromosome sections. Artificial breeding to five different type of Drosophila species was done by Heitz to synthesise heterochromatin. The constant structural characters of polytene chromosomes and constancy of polytene bands were also discovered by Heitz.

Behavior, Chloroplasts, Chromosomes, Heitz, Emil

---

The identification of transposon-tagged mutations in essential genes that affect cell morphology in Saccharomyces cerevisiae

Article Abstract:

The yeast Saccharomyces cerevisiae develops buds as part of its reproduction and the successful development of these buds is dependent on numerous genes. Transposon mutagenesis was used to establish a large collection of lethal disruption mutations. From the collection, 209 mutants with disruptions that cause aberrant terminal bud formation were characterized. In addition, three previously uncharacterized genes were identified as essential genes in bud morphological development.

Analysis, Usage, Physiological aspects, Yeast, Saccharomyces, Yeast (Food product), Cell research, Cytological research, Transposons

---

Similar abstracts:

• Abstracts: Delimiting the location of the scrapie prion incubation time gene on chromosome 2 of the mouse
• Abstracts: The effects of lithium chloride on pattern formation in Tetrahymena thermophila. Pattern formation in Hydra vulgaris is controlled by lithium-sensitive processes
• Abstracts: Delta function is required for bristle organ determination and morphogenesis in Drosophila. Bifocal and PP1 interaction regulates targeting of the R-cell growth cone in Drosophila
• Abstracts: Thermostability of ochratoxin A in wheat under two moisture conditions. Improving the thermostability of raw-starch-digesting amylase from a Cytophaga sp. by site-directed mutagenesis
• Abstracts: Molecular interactions between bacterial symbionts and their hosts. Twenty years of the Alzheimer's disease amyloid hypothesis: A genetic perspective

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.