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Polytene in Medical News

Using Multiphoton Microscopy to See Chromosomes in Action

...sue samples like Drosophila salivary glands. The research was ultimately possible thanks to the unique composition of the fruit flies' so-called polytene cells, giant, multistranded chromosomes with hundreds of sets of the genome instead of the usual two sets in conventional cells. This enlarges the usu...

Conditions Of The HIV/AIDS Patients In The Mizo Society

...ness about AIDS is at the peak the Mizo people has a closed mind set up. He condemned the practice of sealing the dead bodies of AIDS patients in polytene bags before burial as it shows their ignorance of the disease. He said that when compared to Hepatitis, HIV is much more difficult to be contracted. P...
Polytene in Biological News

Cold Spring Harbor Protocols features classic approaches for analyzing chromosomes

...sic methods for chromosomal analysis. "Mapping Protein Distributions on polytene Chromosomes by Immunostaining" takes advantage of the formidable size and structure of the large polytene chromosomes found in Drosophila salivary glands. These easily dissected ...

Research sheds light on the mechanics of gene transcription

... imaging in living cells, the researchers observed polytene chromosomes -- giant, multistranded chromosomes in...us. To test the generality of the findings beyond polytene nuclei to common (but much smaller and more diffic...ere no closer together after heat shock. As in the polytene chromosomes, the genes did not move to a single si...

International team compares 12 fruit fly genomes

... ( Drosophila) , researchers in the 1930s found valuable resources known as polytene chromosomes -- giant bundles of chromosomes, banded into distinct segments corresponding to specific genetic loci. polytene chromosomes give geneticists a window on the mechanics of gene activation a...

New technique will produce a better chromosome map

...years, cytogeneticists have used a hand-drawn map of the bands of fruit fly polytene chromosomes, with the shape and location of these structures only vaguely d...or Biophysics and Computational Biology. Current methods for preparing polytene cells for viewing under a light microscope involve using a thumb, pencil, f...

Researchers use multiphoton microscopy to watch chromosomes in action

...ssue samples like Drosophila salivary glands. The research was ultimately possible thanks to the unique composition of the fruit flies' so-called polytene cells, giant, multistranded chromosomes with hundreds of sets of the genome instead of the usual two sets in conventional cells. This enlarges the usu...
Polytene in Biological Dictionary

Polytene

To increase cell volume, some specialized cells undergo repeated rounds of DNA replication without cell division (endomitosis), forming a giant polytene chromosome. Polytene chromosomes form when multiple rounds of replication produce many sister chromatids that remain... most ...

Chromomere

... P Q R S T U V W X Y Z. Search for chromomere in these other databases too. Definition of chromomere : ... An average size chromomere of the polytene X chromosome of Drosophila ... The data clearly show one functional group per chromomere . ... chromomere is A small, bead-like structure tha...
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