Tag Archives: chromosome

Molecular Machines

11 Mar

I love this video, for so many reasons.
I love how he makes a point to talk about the importance of art in scientific research and education. Because of their tiny size, accurate artistic representation is the best tool science currently has to convey how molecule interact and behave.
I love how it gives one of the best scale perspectives of DNA and chromosomes that I’ve ever seen. Simply breathtaking.
And I love how he focuses on the specific fibers and signaling proteins, demonstrating how amazing our adorable little molecular machines are.
It’s a nine minute video, and worth every second of your time.
Enjoy!

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New Type of Extra Chromosomal DNA Discovered

9 Mar

A team of scientists from the University of Virginia and University of North Carolina in the US have discovered a previously unidentified type of small circular DNA molecule occurring outside the chromosomes in mouse and human cells. The circular DNA is 200-400 base pairs in length and consists of non-repeating sequences. The new type of extra-chromosomal circular DNA (eccDNA) has been dubbed microDNA. Unlike other forms of eccDNA, in microDNA the sequences of base pairs are non-repetitive and are usually found associated with particular genes. This suggests they may be produced by micro-deletions of small sections of the chromosomal DNA.
(via PhysOrg)