In one minute, each NPC is estimated to import 60,000 protein molecules into the nucleus, while exporting 50–250 mRNA molecules, 10–20 ribosomal subunits, & 1000 tRNAs out of the nucleus.

TLS Online TPP Program

#Id: 3083

#Unit 3. Fundamental Processes

Minicells form in mutants that produce too many septa; they are small and lack DNA.  

TLS Online TPP Program

#Id: 3084

#Unit 3. Fundamental Processes

Anucleate cells of normal size are generated by partition mutants, in which the duplicate chromosomes fail to separate.

TLS Online TPP Program

#Id: 3085

#Unit 3. Fundamental Processes

Long filaments form when septum formation is inhibited, but chromosome replication is unaffected.

TLS Online TPP Program

#Id: 3086

#Unit 3. Fundamental Processes

Minicells form when septum formation occurs too frequently or in the wrong place, with the result that one of the new daughter cells lacks a chromosome. 

TLS Online TPP Program

#Id: 3087

#Unit 3. Fundamental Processes

he gene ftsZ plays a central role in division. Mutations in ftsZ block septum formation and generate filaments.

TLS Online TPP Program

#Id: 3088

#Unit 3. Fundamental Processes

FtsZ functions at an early stage of septum formation. Early in the division cycle, FtsZ is localized throughout the cytoplasm, but prior to cell division.