From cdfd3f52bddf60b61f48f2fa01480ab740242c10 Mon Sep 17 00:00:00 2001 From: Bo Date: Thu, 28 Sep 2017 18:45:52 +0200 Subject: [PATCH] Refactoring a readme I have tried to be more precise, specific and accurate. I am not sure what you are trying to accomplish with this description, so please let me know if you need any further help if the description expands. --- exercises/nucleotide-count/description.md | 30 +++++++---------------- 1 file changed, 9 insertions(+), 21 deletions(-) diff --git a/exercises/nucleotide-count/description.md b/exercises/nucleotide-count/description.md index ee53a2fd11..23b18e58d9 100644 --- a/exercises/nucleotide-count/description.md +++ b/exercises/nucleotide-count/description.md @@ -1,25 +1,13 @@ -Given a DNA string, compute how many times each nucleotide occurs in the string. +Given a single stranded DNA string, compute how many times each nucleotide occurs in the string. -DNA is represented by an alphabet of the following symbols: 'A', 'C', -'G', and 'T'. - -Each symbol represents a nucleotide, which is a fancy name for the -particular molecules that happen to make up a large part of DNA. - -Shortest intro to biochemistry EVAR: +The genetic language of every living thing on the planet is DNA. +DNA is a large molecule that is built from an extremely long sequence of individual elements called nucleotides. +4 types exist in DNA and these differ only slightly and can be represented as the following symbols: 'A' for adenine, 'C' for cytosine, 'G' for guanine, and 'T' thymine. +Here is an analogy: - twigs are to birds nests as -- nucleotides are to DNA and RNA as -- amino acids are to proteins as -- sugar is to starch as -- oh crap lipids - -I'm not going to talk about lipids because they're crazy complex. - -So back to nucleotides. - -DNA contains four types of them: adenine (`A`), cytosine (`C`), guanine -(`G`), and thymine (`T`). +- nucleotides are to DNA as +- legos are to lego houses as +- words are to sentences as... -RNA contains a slightly different set of nucleotides, but we don't care -about that for now. +In RNA the thymine is substituted with 'U' for uracil, while the remainder stay the same; A, U, C, G.