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Higher Biology 1.1

DNA and the Genome

QuestionAnswer
Name 3 components of a nucleotide. Phosphate, deoxyribose sugar, organic base
Which bases pair together? Adenine- Thymine Guanine- Cytosine
Describe the structure of DNA. Double-stranded and antiparallel double helix
End of DNA strand which has phosphate 5' end
End of DNA strand which has deoxyribose sugar 3' end
Describe DNA organization in prokaryotes. Single, circular chromosome and smaller circular plasmids.
Describe DNA organization in eukaryotes. Linear chromosomes, in the nucleus
Name the associated proteins which help package DNA. Histones
Which eukaryotic cells contain circular plasmids? Mitochondria and chloroplasts
Created by: misslynch
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