LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a plasmid?
A
a section of the human genome
B
a material that cuts DNA
C
viral DNA
D
an accessory piece of DNA found in bacteria
Explanation: 

Detailed explanation-1: -Definition. 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: -Bacteria can also transfer plasmids to one another through a process called conjugation. Scientists have taken advantage of plasmids to use them as tools to clone, transfer, and manipulate genes. Plasmids that are used experimentally for these purposes are called vectors.

Detailed explanation-3: -Bacterial DNA – a circular chromosome plus plasmids This sits in the cytoplasm of the bacterial cell. In addition to the chromosome, bacteria often contain plasmids – small circular DNA molecules. Bacteria can pick up new plasmids from other bacterial cells (during conjugation) or from the environment.

Detailed explanation-4: -A plasmid is a small circular piece of DNA found in bacterial cells, and someone new to plasmids may need some extra guidance to understand the specific components that make up a plasmid and why each is important.

Detailed explanation-5: -Yes, Plasmids naturally exist in all bacterial cells. Plasmids are a small, circular, double-stranded DNA molecule, which is naturally found in all Bacterial cells. These plasmids are separated from chromosomal DNA and have the capability to replicate independently.

There is 1 question to complete.