Post-transcriptional modifications US Medical PG Flashcards - Medical Study Cards
Master Post-transcriptional modifications with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Post-transcriptional modifications Flashcard Deck - 10 Cards
Flashcard 1: The _____ of mRNA is the portion of mRNA which contains no protein information
Answer: untranslated region (UTR)
Flashcard 2: One post-transcriptional modification is the addition of a _____ at the 3' end
Answer: poly-A tail
Flashcard 3: The process that allows transmembrane vs secreted Ig, tropomyosin variants in muscle, and dopamine receptors in the brain to all come from respective single hnRNA transcripts is known as _____
Answer: alternative splicing
Flashcard 4: Different exons are frequently combined by _____ to produce a larger number of unique proteins
Answer: alternative splicing
Flashcard 5: Eukaryotic translation begins when a ribosome binds a _____
Answer: 7-methyl-G-cap
Flashcard 6: Where does protein synthesis take place?
Answer: RER
Flashcard 7: ribosome
Answer: protein synthesis
Extra: 50S and 30S subunits
Flashcard 8: Northern
Answer: RNA
Extra: complementary labeled RNA
Flashcard 9: What occurs during the translation step of collagen synthesis?
Answer: translation of preprocollagen α-chains
Flashcard 10: What kinds of proteins are synthesized by membrane bound ribosomes vs. free ribosomes?
Answer: membrane-bound - secretory proteins
free - cytosolic and organellar
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