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Interactive learning of DNA structure.

"DNA Puzzle" is a small online knowledge level game to sort the four nitrogen bases in the Deoxyribonucleic acid strandin in correct order. Free online game to study the DNA structure for kids and students. Fun biology educational game, suitable for online lessons and interactive classes. Online DNA worksheet.


This biology class game include the following nitrogen bases to play with:
  • (A) Adenine - Orange
  • (T) Thymine - Red
  • (C) Cytosine - Blue
  • (G) Guanine - Green
Game code by Ogo Bob. Pictures By File:Difference DNA RNA-DE.svg: Sponk / *translation: Sponk - Chemical structures of nucleobases by Roland1952, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=9810855. And By Eukaryote_DNA.svg: *Difference_DNA_RNA-EN.svg: *Difference_DNA_RNA-DE.svg: Sponk (talk)translation: Sponk (talk)Chromosome.svg: *derivative work: Tryphon (talk)Chromosome-upright.png: Original version: Magnus Manske, this version with upright chromosome: User:Dietzel65Animal_cell_structure_en.svg: LadyofHats (Mariana Ruiz)derivative work: Radio89derivative work: Radio89 - This file was derived from:áEukaryote DNA.svg:, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=20539140.

DNA Puzzle

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How to play DNA Puzzle

Drag and drop the four nitrogen bases on the left of the screen in the blanked DNA strand to the right of the screen. There are the 4 bases of the DNA to the right of the screen in two different positions. Place them in pairs in the empty diagram of the DNA. Roll over the DNA animation for a picture of the DNA location in the body. Press it to stop the animation. 14 tries are for excellent mark "A" and more than 28 tries are for poor mark "F".


Knowledge Achievements:
Know the four nitrogen bases of the DNA and get +1 Knowledge Level.
Difficulty: Medium.

DNA Puzzle Screenshot

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Class subject: DNA Structure.

The first question that comes in mind about the DNA is where is it situated? The DNA location is in the chromosome, which is situated in the nucleus of the living cell.

Deoxyribonucleic acid (DNA) is a molecule composed of two chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms. The two DNA strands are also known as polynucleotides as they are composed of simpler monomeric units called nucleotides. Each nucleotide is composed of one of four nitrogen-containing nucleobases (cytosine [C], guanine [G], adenine [A] or thymine [T]), a sugar called deoxyribose, and a phosphate group. Both strands of double-stranded DNA store the same biological information. This information is replicated as and when the two strands separate.

The structure of DNA is dynamic along its length, being capable of coiling into tight loops and other shapes. In all species it is composed of two helical chains, bound to each other by hydrogen bonds. Both chains are coiled around the same axis, and have the same pitch of 3.4 nanometres. The pair of chains has a radius of 1.0ánanometre.

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