Question

Define plasmid and mesosomes
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Answer 1

Answer:

- mesosomes are the infoldings in the plasma membrane,these are rich in enzymes that helps to perform functions like cellular respiration,DNA replication,secretion of glycocalyx and cell division(most imporatant function;it increases the surface area of the cell membrane.

- A plasmid is an small extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. They are most commonly found as small circular, double-stranded DNA molecules in bacteria; however, plasmids are sometimes present in archaea and eukaryotic organisms.

Answer 2

Answer:

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Explanation: plasmid: a genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.

mesosome: an organelle of bacteria that appears as an invagination of the plasma membrane and functions either in DNA replication and cell division or excretion of exoenzymes.