The chemical structure of DNA

12 questions

1. The drawing shows a bacterial cell. Which structure (A, B or C) contains the genetic material?
2. Which is the best definition of a gene?
3. All organisms have similarities in their DNA. Put these examples in order, starting with the example of two things that have the most similar DNA.
4. What do scientists call the sections of DNA in a chromosome that lie between genes?
5. True or false? Only genes make up the genome of an organism.
6. Which is the best explanation for why the genomes of humans and bananas have similarities?
7. In plant and animal cells, the genome is stored in the ...
8. DNA is a nucleic acid polymer. How many nucleic acid strands make up each DNA molecule?
9. Put these in size order, starting with the smallest.
10. The diagram is a model of a nucleotide. Which part (A, B or C) represents the base?
11. The instructions contained in a gene are often referred to as the genetic code. Which is the best description of the genetic code?
12. The photograph shows a model of part of a DNA molecule. It is made from liquorice and jelly babies. What would improve the model?

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