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Qaabka dhismaha DNA-da
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Soo dejiso:
Muuji qoraalka
Genetic material is made of DNA.
DNA is a long chemical molecule, made of two chains of smaller chemical units joined together.
All of the DNA in a cell is called the genome.
The chains are spiralled around one another in a double helix, with links across the middle.
Scientific models of DNA can be evaluated for their strengths and weaknesses.