RNA and RNA Polymerases - USMLE Forums
USMLE Forums Logo
USMLE Forums         Your Reliable USMLE Online Community     Members     Posts
USMLE Articles
Go Back   USMLE Forums > USMLE Step 1 Forum > USMLE Step 1 High Yield > USMLE Step 1 Mnemonics

USMLE Step 1 Mnemonics Mnemonics, acronyms, reminders, and memorizing tips for the USMLE Step 1.

Thread Tools Search this Thread Display Modes
Old 09-01-2009
USMLE Forums Master
Steps History: 1+CK+CS+3
Posts: 742
Threads: 137
Thanked 2,401 Times in 441 Posts
Reputation: 2504
DNA RNA and RNA Polymerases

You have three types of RNA

  • rRNA (ribosomal RNA) is most abundant (R = Rampant)
  • tRNA (transfer RNA) is the smallest (T = Tiny)
  • mRNA (messenger RNA) the only translated RNA and is the longest one (M = Massive)

Three types (numbers) of RNA Polymerases which can be easily remembered by remembering the sequence of events

  • First you have to make the ribosomes so RNA Polymerase I makes rRNA in the nucleolus (all except, see below)
  • Second you have to transcribe the DNA message so RNA Polymerase II makes mRNA in the nucleoplasm.
  • Third you have to bring the amino acids for translation so RNA Polymerase III makes tRNA in the nucleoplasm.
The only exception is that RNA Polymerase III also makes the 5S rRNA.

Last edited by rasheed; 09-01-2009 at 01:08 PM.
Reply With Quote Quick reply to this message
The above post was thanked by:
docspike (10-20-2009), monsalg2502 (02-15-2012), riya10 (08-04-2011), Usmle16Forall (06-19-2016), wahaha007 (01-10-2010)



Quick Reply

Register Now

In order to be able to post messages on the USMLE Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Medical School
Choose "---" if you don't want to tell. AMG for US & Canadian medical schools. IMG for all other medical schools.
USMLE Steps History
What steps finished! Example: 1+CK+CS+3 = Passed Step 1, Step 2 CK, Step 2 CS, and Step 3.

Choose "---" if you don't want to tell.

Favorite USMLE Books
What USMLE books you really think are useful. Leave blank if you don't want to tell.
Where you live. Leave blank if you don't want to tell.


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
RNA Polymerases Products jjsanchezramirez USMLE Step 1 Mnemonics 1 12-22-2015 10:46 PM
RNA/DNA Dependent RNA/DNA Polymerases! kemoo USMLE Step 1 Forum 1 01-18-2011 11:28 AM

RSS Feed
Find Us on Facebook
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2014)