RNA’s structure and the Birth of the RNA triplets. Mrs. New-New. RNA- Ribonucleic Acid. RNA’s Structure. Has a single strand made up of many nucleotides There are 3 types mRNA tRNA rRNA. RNA Nucleotide. RNA has four nitrogen bases. Purines- 2 rings Adenine Guanine
Purines- 2 rings
Pyrimidines- 1 ring
4. Lil” Momma now has the blueprint to make proteins and is ready to leave the nucleus; but before she can leave, she has to be edited. (Introns are taken out and Exons are put back together)
5. mRNA, tRNA, and rRNAwill now leave the nucleus and travel to a ribosome.
6. DNA zips back up.
- This happens in the nucleus, right after DNA replication
It’s Newson baby!!
4. However, tRNA can’t start matching its anticodon and dropping off amino acids until it comes to the start codon (AUG). Now once it sees the start codon, it’s on!!!!
5. tRNA will keep matching it’s anticodon with mRNA’s codon and leaving behind amino acids until it comes to one of the stop codons. (UAG, UGA, UAA)
6. Once tRNA comes to a stop codon, it will stop translating mRNA and the long chain of amino acids will break off and become a protein (polypeptide).
1. DNA replication – DNA makes a copy of itself
2. Transcription- DNA produces the RNA triplets and gives the blueprint to make proteins to mRNA
3. Translation – mRNA and tRNA work together with rRNA to combine amino acids to make proteins