Which of the following is NOT true of the different kinds of RNA in eukaryotes?
Correct Answer: B.They all contain codons.
There are 3 types of RNA: (1) ribosomal RNA (rRNA); (2) messenger RNA (mRNA) and (3) transfer RNA (tRNA). RNA is a single-stranded polymer made up of four bases, namely uracil, adenine, guanine and cytosine. Only mRNA can contain a codon, a genetic code consisting of three base pairs that can be translated by the cellular machinery into an amino acid during protein synthesis. RNA elongates elongates from the 5? to 3? direction using a DNA strand with the opposite orientation as a template for transcription.
The Medical College Admissions Test (MCAT) is a test administered by the Association of American Medical Colleges (AAMC). The test is designed to test your knowledge in three specific sections; physical sciences such as physics and general chemistry, biological sciences and organic chemistry, and verbal reasoning.
How Should I Study?
The MCAT is a rigorous exam that requires months of planning in order to achieve a great score. It is recommended that you begin your study schedule 3 months prior to your exam date. In addition to answering our practice MCAT questions each day, read this article regarding studying for the MCAT from home.
Register for the MCAT.
The first question many people ask is, “when should I take the MCAT?” The general guideline is to take the MCAT the year before you plan to enter medical school. For example, the class of 2018 should take the MCAT sometime before or during the spring/summer of 2013. Your basic science coursework should be complete by this point.