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RNA

Biology: Edexcel IGCSE, topic 4.2.6

RNA

RNA is a polymer similar to DNA. RNA is also made up of nucleotides and carries a sequence of bases.

Single-stranded

Single-stranded

  • RNA is single-stranded, whereas DNA is double-stranded and forms a double helix.
Uracil

Uracil

  • In RNA, G still pairs with C, but another base called Uracil (U) pairs with A instead of Thymine (T).
DNA templates

DNA templates

  • RNA is very important for reading DNA and then making new proteins from genes.
  • This is because RNA has bases that can pair up with DNA bases, making a template of the DNA code.

Test yourself on RNA

  • Which of these are true of RNA

  • Which of these are the correct pairings in RNA?

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