The introns in pre-tRNA vary in length from 14 to 60 bases and only single intron is found in each pre-tRNA transcript

TLS Online TPP Program

#Id: 6765

#Unit 3. Fundamental Processes

P bodies are dense cytoplasmic domains many times the size of a ribosome. They are sites of translational repression that contain no ribosomes or translation factors. They are also major sites of mRNA degradation in the cytoplasm. Exon-junction complexes upf complex functions in nonsense-mediated decay and induces degradation of the mRNA by P body–associated 5′→3′ exoribonuclease XRN1 

TLS Online TPP Program

#Id: 7778

#Unit 2. Cellular Organization

Eight approximately 100-nm long filaments extend into the nucleoplasm with the distal ends of these filaments joined by a terminal ring, forming a structure called the nuclear basket.

TLS Online TPP Program

#Id: 7202

#Unit 5. Developmental Biology

TLS Online TPP Program

#Id: 7866

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 8916

#Unit 2. Cellular Organization

Cytokinesis

With the exception of higher plants, the division of the cell is brought about by a contractile ring made of actin and myosin