DNA and Genetics - Term 3

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5 Terms

1
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Describe the structure of DNA

DNA (deoxyribonucleic acid) is a double stranded molecule that forms a double helix shape and is made up of nucleotides.

2
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Name the 5 nitrogenous bases

Adenine, Thymine, Uracil, Guanine, Cytosine

3
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Compare DNA, genes and chromosomes

DNA - provides a code for proteins that organisms require to live

Genes - a section of DNA that codes for the synthesis of proteins

Chromosomes - a thread like structure of tightly wound DNA and proteins

4
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Explain how is DNA is stored

DNA is wrapped around histones (proteins) to form chromatin. The chromatin is tightly coiled into long, thin coils, thread-like structures called chromosomes

5
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Characteristics of DNA

2 strands, deoxy