OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -These plasmids are larger than the entire genomes of many obligately symbiotic bacteria and even some free-living bacteria.
Detailed explanation-2: –Option D says that the plasmid’s DNA is as long as chromosomal DNA. As the plasmid DNA contains only extra genes that are required in certain conditions only, the DNA of the plasmid carries shorter sequences than the chromosomal DNA. Thus, this statement is incorrect.
Detailed explanation-3: -Answer and Explanation: a. They are small, circular molecules of single-stranded DNA. This is false because plasmids are double-stranded DNA, not single-stranded DNA.
Detailed explanation-4: -A plasmid is a small circular DNA molecule found in bacteria and some other microscopic organisms. Plasmids are physically separate from chromosomal DNA and replicate independently.