Molecular Information Flow and Protein Processing - Genetic Elements: Chromosomes and Plasmids

6 important questions on Molecular Information Flow and Protein Processing - Genetic Elements: Chromosomes and Plasmids

What is the main difference between prokaryotic and eukaryotic chromosomes?

  • Prokaryotic - single cicular chromosome
  • Eukaryotic - composed of two or more chromosomes containing linear DNA

Circular or linear double stranded DNA molecules that replicate separtely from the chromosome and are typically much smaller than chromosomes.

Plasmids

Sequences of DNA that are inserted into other DNA molecules but can move from one site on the DNA molecule to another, on the same molecule or a different one.

Transposable elements
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It is transcribed to form a single mRNA that encodes several different proteins and is regulated as a unit.

Operon

Plasmids that confer resistance to antibiotics or other growth inhibitors

R plasmids

Proteins that inhibit or kill closely related species of bacteria.

Bacteriocins

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