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Transcrip/Translate
| Question | Answer |
|---|---|
| Major differences in RNA | Uracil is swapped out for Thymine, it's single stranded |
| mRNA function | encodes proteins |
| tRNA function | acts as adaptor between mRNA and amino acids |
| rRNA | forms the ribosomes |
| Transcription def | reading a DNA template to synthesize a strand of RNA. Different genes can have the template strand on either side of the double helix |
| Big points of RNA synthesis | Always synthesized from 5' to 3', doesn't require a primer, and the polymerase reads the template in one direction |
| Transcription Factors def | proteins that assist in the recognition of/regulation of gene expression |
| What are the 2 basic regions of a gene? | the coding region and regulating region |
| Promoter function | helps begin transcription |
| Termination def | happens when there's a sequence in DNA that tells it to stop |
| How is RNA modified? (what is added?) | 5' cap, 3' poly A tail (these help interactions with the ribosome) |
| How does RNA move from the nucleus to the cytoplasm? | It must bind to proteins (highly regulated) |
| what does the 5' end always have? | GU |
| what does the 3' end always have | AG |
| what is alternate splicing? | generates additional protein diversity. can make more than one protein from a gene |