The Double Helix: Top Ten Amazing Facts about DNA!

The Double Helix: Top Ten Amazing Facts about DNA!

• You have an estimated 3 billion DNA bases in your genome.

• Your genome would occupy about 3 gigabytes of computer storage space or fill 200 1,000-page New York City telephone directories.

• It would take a person typing 60 words per minute, eight hours a day, around 50 years to type out all the letters of your genome.

• If unwound and tied together, the strands of DNA in one cell would stretch almost six feet but would be only 50 trillionths of an inch wide.

• If you unwrap all the DNA you have in all your cells it would reach to the sun and back over 600 times (100 trillion times six feet divided by 92 million miles).

• You have an estimated 20,000 to 25,000 genes, but they only make up 2-3% of your genome. We are just starting to understand the function of your remaining “junk”.

• Over 99.9% of your DNA sequence is the same as mine!

• You have 1-4% Neanderthal DNA; some of you may have more 🙂

• The first human genome was patched together over 13 years; today, your genome can be commercially sequenced in 2-3 months.

• Costs for sequencing the genome are falling exponentially: from USD 3 billion in 2001 to USD1,000 today and may fall by another factor of ten!

So, what’s in your genes?

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Awesome enough for you? Want more? Check out: http://www.eyeondna.com/2007/08/20/100-facts-about-dna/

http://bionumbers.hms.harvard.edu/search.aspx?log=y&task=searchbytrmorg&trm=dna&time=2012%2f01%2f28+16%3a12%3a18.418

Thanks to Dunken K Bliths for generating this wonderful gif!

Thank you Konstantin Makov , for finding this hypnotic image 🙂

#sciencesunday curated by Allison Sekuler and Robby Bowles .

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Bitter is Better: Fabulous Fenugreek Leaves!

Bitter is Better: Fabulous Fenugreek Leaves! Triumphantly, I produced my find of the day, Trigonella foenum-graecum , much like a conjurer hopes to elicit oohs and ahhs for pulling the proverbial rabbit out of a hat. It was a perfect specimen, clover–like leaves of pale green, a few diminutive flowers dusting their yellow pollen on to my veined kitchen counter.

The family was less appreciative. What is that? Are you going to cook that today? My husband raised a dubious eyebrow. He was thinking, no doubt, of the exponential decay from verdant green to liquid mess that still occurred with distressingly short t1/2 despite the two compressors atop our shiny new stainless steel refrigerator. Even those exotically unstable elements like Calfornium 253 or Thulium 167 had enviably longer half-lives than the greens in our fridge. On the defensive, I pretended that I had planned all along to cook them right away. Which was not a bad idea: social media guru Becky Robinson had challenged me to write a blog in 12 minutes, in retribution for my laughing at fellow blogger David Crowley who wrote a blog about writing a blog in under 12 minutes, and this seemed a good enough reason to write.

Fenugreek (“methi”) leaves are slightly bitter, but long prized for their medicinal properties throughout the near East. Indeed, they are mentioned in the oldest surviving book of Latin prose, De Agri Cultura , written by Cato the Elder around 160 BC. The dried leaves are called “Kasoori methi” and have a unique fragrance, while the amber yellow seeds are quite bitter and ground into “curry” spice mixes. Oddly, fenugreek extract is used to flavor artificial maple syrup.

Here it is: Alu Methi or Potatoes with Fenugreek – a simple but flavorful combination, perfect alongside some Indian bread (naan) or pita. A little bit of bitter makes it better . An analogy for life.

Recipe at: https://madamescientist.wordpress.com/2012/02/05/bitter-is-better-fabulous-fenugreek-leaves/

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