Strength of mortality factors varies with plant productivity, the rate of production of plant biomass. For very simple systems, where few plants exist, not enough plant material is available to support herbivores, and plants must be resource limited, that is, limited by competition.

 

  

TLS Online TPP Program

#Id: 464

#Unit 2. Cellular Organization

Introns are nucleotide sequence which cannot encode functional proteins or polypeptides or introns do not have a sequence-specific function.

TLS Online TPP Program

#Id: 465

#Unit 2. Cellular Organization

Introns have negative Fold Potential i.e. potential to form stem loop.

TLS Online TPP Program

#Id: 466

#Unit 2. Cellular Organization

Overlapping gene are the same sequence of DNA encodes two nonhomologous proteins because it uses more than one reading frame.

TLS Online TPP Program

#Id: 467

#Unit 2. Cellular Organization

Mutations occur at the same rate in both exons and introns, but exon mutations are eliminated more effectively by selection.

TLS Online TPP Program

#Id: 468

#Unit 2. Cellular Organization

Introns may more freely accumulate point substitutions and other changes due to no selection pressure.

TLS Online TPP Program

#Id: 469

#Unit 2. Cellular Organization

Introns evolve or accumulate mutations/changes much more rapidly than exons