And what substance are A, T, C, G?!
I'm guessing the end of 1b says "are a part of?". So yes, that'd be DNA
This PDF may be of some help to you, as you're also doing Biology: https://www.bangor.ac.uk/ccm/documen...s-revision.pdf
(Pages 76-86 are to do with Protein synthesis )
Biology123ABC , what level are working at? GCSE? A-Level? I didn't need to know about purines/pyrimidines until Uni so I wouldn't worry if you've never heard of them.
A pairs to T in DNA (Uracil replaces Thymine in RNA) and G pairs to C
they form hydrogen bonds between one another
- transcription: an m-RNA is generated based on a DNA strand of complementary bases (A, T, C and G).
- translation: an m-RNA strand is formed after decoding in transcription. The information of DNA is translated to RNA completely.
- transfer: the m-RNA is transferred by a t-RNA to the ribosomes. At the ribosome, the m-RNA is bound to the r-RNA of the ribosome. This procedure is repeating by another transporting m-RNAs. Polypeptides are creating, a protein is synthesised, the t-RNAs are vanished (detach from m-RNA).