Trans-splicing is rare in multicellular eukaryotes, it occurs as the primary mechanism to process precursor RNA into mature, translatable mRNAs in some organisms, such as trypanosomes and nematodes.

TLS Online TPP Program

#Id: 8111

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 720

#Unit 3. Fundamental Processes

Each haploid bacterium typically has a single chromosome, so this type of replication control is called single copy.

TLS Online TPP Program

#Id: 560

#Unit 2. Cellular Organization

When polymerase binding causes transition to the open complex and initiates transcription. This gives a low level of constitutive expression called the basal level. 

Binding of RNA polymerase is the rate-limiting step in this case.

TLS Online TPP Program

#Id: 5521

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 4709

#Unit 13. Methods in Biology

In proteins, there are three types of chromophores relevant for UV/Vis spectroscopy:

• peptide bonds (amide bond);

• certain amino acid side chains (mainly tryptophan and tyrosine); and

• certain prosthetic groups and coenzymes (e.g. porphyrine groups such as in haem).