PATHOLOGY

PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A vector is
A
a type of insect
B
DNA that carries and inserts a new gene
C
the new gene that is to be inserted
D
protein that carries the new gene
Explanation: 

Detailed explanation-1: -A vector is a DNA molecule used as a vehicle to transfer foreign genetic material into another cell. All engineered vectors have an origin of replication, a multicloning site, and a selectable marker. Genome size varies among different organisms and the cloning vector must be selected accordingly.

Detailed explanation-2: -A vector, as related to molecular biology, is a DNA molecule (often plasmid or virus) that is used as a vehicle to carry a particular DNA segment into a host cell as part of a cloning or recombinant DNA technique.

Detailed explanation-3: -To clone a stretch of DNA (such as a gene) into a vector, restriction enzymes are used to cut out the DNA of interest and to open up the vector. The DNA is added to the vector by mixing the two together in the presence of the enzyme DNA ligase.

There is 1 question to complete.