Question

Now a days which of the following are known as "magic circles"
A) Plasmids
B) Genes
C) Amyloplasts
D) Elaioplasts

Answer 1

plasmid

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Answer 2

Answer:

The correct answer is A) Plasmids

Explanation:

• Plasmids exist as the circular genetic material of bacteria and they are useful in genetic engineering.
• A plasmid exists as a small, circular, double-stranded DNA molecule that is different from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also appear in some eukaryotes. Often, the genes held in plasmids supply bacteria with genetic benefits, such as antibiotic resistance.
• Plasmids are extrachromosomal, double-stranded, autonomously replicating nucleic acid molecules that are different from the chromosome. Though supercoiled in most bacteria, they exist linear in some species.

Therefore, The correct answer is A) Plasmids.

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