AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about plasmids?
A
small circular piece of DNA found in humans
B
small circular piece of RNA
C
small circular piece of DNA that is located in bacteria
D
small linear piece of DNA located in plants
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -1. Which of the following is true regarding taking up of plasmid DNA in the bacterial cells? Explanation: There are more chances of having a single plasmid in one cell.

Detailed explanation-3: -Plasmids are found in bacteria, they are extrachromosomal DNA that provide bacteria with genetic advantages, such as antibiotic resistance. Plasmids are used in gene transfer. Many plasmids with the insulin gene are inserted into many bacterial cells.

Detailed explanation-4: -So, the correct option is ‘Plasmids do not depend on host enzymatic machinery for their replication’

Detailed explanation-5: -Plasmids are extra-chromosomal small circular DNAs that are capable of replicating independently of the host, and are present throughout a variety of different microorganisms, most notably bacteria.

There is 1 question to complete.