i just dont understand when it says 5 complete rungs 10 sugars 10 phosphates 10 nitrogen bases and bases attached to sugars and its says proper bonding for all base pairs on all 5 rungs???
can anyone explain or have a website that shows wat those are?? thnx
2007-11-24 07:59:16 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Are you making a model of DNA?
Each complete rung is made of a pair of nitrogen bases. The bases adenine and thymine match together; the bases cytosine and guanine join together.
A base is part of a building block called a nucleotide. Each nucleotide has the sugar called deoxyribose, a phosphate group, and one of the four nitrogen bases.
This sounds like you are supposed to make a model of DNA that is 5 nucleotides long. It will look like a twisted ladder that has five steps, or rungs. There will be 5 nucleotides on each side of the ladder, and the two sides of the ladder will be joined in the middle (at the rungs) by sticking the nitrogen bases together in the correct pairs.
Try looking at a picture like this:
http://www.saskschools.ca/curr_content/bio2030/bio30/unit1/dnaproject/activitytemplate/page1.htm
2007-11-24 08:18:20 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋