An average mosquito bite takes up 58.6 km of DNA, about 1.5 times the height that Felix Baumgartner fell on his jump from the edge of space.

### Work

- Mosquitoes take up an average of 5 microlitres of blood per bite. (cite)
- About 350 micrograms of DNA can be extracted from 10 ml of blood. (cite)
- On average, each DNA base pair (two nucleotides) weighs 615 daltons. (cite)
- On average, each DNA base pair contributes 0.34 nanometers to the length of a DNA strand. (cite)
- Felix Baumgartner’s free fall was estimated to be 39 kilometres. (cite)

An average mosquito will consume about 5 ul of blood, equivalent to (5 ul / 10 ml * 350 ug = 0.175 ug) 0.175 ug of DNA. Out of the 0.175 ug of DNA from a mosquito bite, there are (.175 ug / 615 daltons * 1 base pair = 1.714*10^14 base pairs) 1.7*10^14 base pairs of DNA. Each of the DNA base pairs contributes 0.34 nm to the length of a DNA strand, so there are (1.714*10^14 base pairs * 0.34 nm = 58.3 km) 58.3 km worth of DNA in a mosquito bite. Felix Baumgartner fell an estimated 39 kilometres, so the length of DNA in a mosquito bite is (58.3 km / 39 km = 1.4948 times ) 1.5 times the height that Baumgartner fell. For a quick check of my math, see WolframAlpha. (cite)

### Disclaimer

Factoid Fridays are tweet sized factoids with appropriate, but sometimes not peer reviewed, citations. For simplicity, I’ve left out unit conversions (*i.e. *micrograms to daltons), so those calculations can be considered an exercise to the reader. If you think there is an error in an assumption or calculation, please contact me.