From our perspective to the largest scale measured, and then to the smallest scale measurable. This video illustrates the effect of adding or subtracting another zero on a given scale. The largest distance measurable in the observable universe was calculated to be about 47 billion lightyears; about . The smallest scale measurable, or at least defined to my knowledge, is the Planck length; . One nucleotide (the molecules that are the building blocks of DNA) measures about 0.33 nm. Stretched out, human chromosome 1, with its approximately 249 million nucleotides, would be about 8 cm long. The whole human genome would be about 3 m in length. Not much compared to galactic distances, but still quite interesting.
About the author
I am a DPhil / PhD student at the University of Oxford, at the Wellcome Trust Centre for Human Genetics. I study "Genomic Medicine and Statistics" with focus on rare genetic variation and its role in complex diseases. My work involves the development of statistical methods to explore the background of Type 2 Diabetes using population genetics.
Resent blog posts
- Compare true and imputed genotypes by calculating R-squared 16 February, 2014
- Reduce size of IMPUTE2 genotype files 15 January, 2014
- Meta-imputation 22 December, 2013
- Microscopic 6 November, 2013
- A simple progress-bar in R 31 October, 2013