Recombinant DNA
Enzymes that recognize and cleave specific 4 to 8 base pair sequences of DNA are

DNA gyrase
DNA ligase
helicases
restriction endonucleases

ANSWER DOWNLOAD EXAMIANS APP

Recombinant DNA
Electroporation is

the process of separating charged molecules through a gel maintained in an electric field
the application of high voltage pulses
the process of combining foreign DNA to an electrically charged vector molecule
the process of multiplication of the cells

ANSWER DOWNLOAD EXAMIANS APP

Recombinant DNA
Agrobacterium tumefaciens is

a disease in humans that causes loss of weight
a bacterium that can be used to introduce DNA into plants
a fungi that is used to produce antibiotics in large amounts
a disease in humans that causes loss of sight

ANSWER DOWNLOAD EXAMIANS APP

Recombinant DNA
Bacterial cells protect their own DNA from degradation by restriction endonucleases by

methylating the DNA at the sites that the enzyme recognizes
having anti restriction endonucleases
deleting all recognition sites from the genome
not producing any restriction endonucleases

ANSWER DOWNLOAD EXAMIANS APP

Recombinant DNA
Vectors are

molecules that help in replication
molecules that protect host cells from invasion by foreign DNA
molecules that degrade nucleic acids
molecules that are able to covalently bond to and carry foreign DNA into cells

ANSWER DOWNLOAD EXAMIANS APP