The most striking chromatin modification is the formation
of heterochromatic foci, termed as senescence associated heterochromatic foci (SAHF), often induced by the activation of oncogenes such as Ras.
Red denotes a small minimum distance, or thin region, of a branch
of the heterochromatic structure, and white denotes a large minimum distance, or thick region, of a branch of the heterochromatin.
In Drosophila cells, «safe» homologous recombination repair
of heterochromatic double - strand breaks (DSBs) relies on a specialized pathway that relocalizes repair sites to the nuclear periphery.
Not exact matches
Bettors have been siding with the
heterochromatic - eyed ace
of the Nats, which generally happens in these situations.
An oocyte with decreased Topoiosmerase II levels in
heterochromatic region
of the X chromosome (green) failed to separate while
heterochromatic region
of the 4th chromosome (red) is stretched into abnormal projections.
Further examinations
of the inactive X in lymphocytes found that it lacked the
heterochromatic marks found on the inactive X in other cell types.
«These findings directly contradict the traditional view that the Y is largely
heterochromatic with a paucity
of genes and transcription activity,» said the researchers, who released their findings in the current online issue
of Proceedings
of the National Academy
of Sciences.
The haploid genome
of D. melanogaster consists
of two compartments, a
heterochromatic gene - poor 50 Mb and a euchromatic gene - rich 115 Mb.
They found that
heterochromatic droplets fused together just like two drops
of oil surrounded by water.
No character better exemplifies the movie's out - there visual sense than the shapeshifting witch (a scene - stealing Rinko Kikuchi) with
heterochromatic eyes who uses her long, tentacle - like hair as an extra set
of limbs and occasionally disappears into a swirl
of colorful fabrics.
Eye problems such as cataracts and Collie Eye Anomaly are fairly common to this breed, typical
of those dogs carrying the
heterochromatic gene.
This breed also carries the gene for
heterochromatic eyes, in other words, eyes
of different colors.
However, one word
of caution to be aware
of is that since both parent breeds carry the gene for
heterochromatic (different color) eyes, they are prone to eye problems like glaucoma and cataracts.