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DNA is like an alphabet: analogies

Where in the body do we find DNA?
Everwhere!
DNA is inside every part of us, in every tissue, in every cell!
How can we illustrate the relationship between our body and our DNA? Kind of like this:

{ http://www.geneticdisordersuk.org/aboutgeneticdisorders/basicterms }
{ http://is.muni.cz/th/284031/pedf_m/ByrtusovaDP.pdf }

organism cell chromosome DNAorganism cell chromosome DNA 2

Letters                                                                               DNA Bases (aka nitrogenous bases)

Drawings made of lines and curves.                               Rings of C, H and N atoms

26 different letters                                                            4 different nucleotides are used in DNA

A, B, C, D, E, F, G, H….X, Y, Z

DNAbases

 

Word                                                                                 Gene

The smallest meaningful unit of speech                         The smallest meaningful unit of DNA that tells

that can stand by itself.                                                     a cell how to build a protein.

Example:   C-G-T-G-C-A-G-A-T
(builds a protein made of three amino acids)

 

Sentence                                                                            A group of genes working together

A group of words put together to mean something.     C-G-T-G-C-A-G-A-T

A sentence is the basic unit of language which              A -A-T-G-C-T-G-A-C

expresses a complete thought.                                        T-C-C-C-G-A-T-G-A

 

Book                                                                                       Chromosome

Many sentences put together to tell a complete
and meaningful story.

Book-iconchromosomes 1

 

Library                                                                                                Genome

A group of books, often on a related topic.                  All the chromosomes in a cell.

 

LibraryKaryotype

 

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