#Question id: 279
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the order of packaging of chromatin in eukaryotic cells from smallest to largest size?
#Question id: 4097
#Unit 3. Fundamental Processes
The 3' end of most eukaryotic mRNAs is defined by the addition of a polyA tail - a processing reaction called polyadenylation. Choose correct set of proteins involved in the polyadenylation
#Question id: 20306
#Unit 7. System Physiology – Animal
#Question id: 217
#Unit 1. Molecules and their Interaction Relevant to Biology
Which substance would make a good ligand for biotin on the matrix of an affinity chromatography column?
#Question id: 797
#Unit 1. Molecules and their Interaction Relevant to Biology
With respect to microRNAs, which, if any, of the following statements, is FALSE?)
A. MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.
B. Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5’ cap and a poly(A) tail.
C. MicroRNAs are produced by germ-line cells only.
D. A miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.
E. MicroRNAs usually work as transcription factors.