Question

Question 32 3 pts Which of the following statements correctly describes R plasmids? O They contain genes that allow for the day-to-day metabolic processes of prokaryotic organisms. O They are critical to archaea reproduction. They are commonly found in the nuclei of unicellular eukaryotes. They are only characteristic of retroviruses. They allow for antibiotic resistance among bacteria.

Answer 1

Last option

Plasmids are extrachromosomal DNA in bacteria. They are present in cytoplasm in multiple copies. They are double stranded circular molecule of DNA. They are not essential for the survival of bacteria but carry genes that confer specific characteristics to bacteria.

Types of plasmids -

F factor - fertility plasmid, allows the bacteria to undergo genetic recombination

R plasmid - resistance plasmid, confers the bacteria to grow in the present of antibiotics

Ti plasmid - tumor inducing plasmid, allow the bacteria to cause tumor formation in other organisms

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