Technology

3D Image Shows Chromosomes Look Completely Different To What You Think


If you can remember learning about chromosomes in biology class, you probably imagine them as a narrow X shape, representing a pair of joined chromatids before cell division.


According to a study published earlier this year, most of the time, the shape of a chromosome is actually a whole lot more complex.


The study, conducted by a team of physicists from the Harvard Graduate School of Arts and Sciences, was able to produce a detailed 3D image of a chromosome, visualising them in a way that has never been seen before.


Using a high resolution 3D imaging system, the researchers joined up multiple separate images of ‘genomic loci’ along DNA chains to form one single 3D image, showing a far more accurate representation of chromosomes than the classic X-shape you learned about in science class.


The study says that the 3D imaging can also show a small glimpse of transcription activity – the first stage of DNA replication – in the chromosomes.


The team plans to share their data online so other researchers can work to better understand not only the structure of chromosomes, but their function in our DNA.






Powered by Blogger.