Which best describes the process of making recombinant dna a: the isolated dna is inserted into a mechanical vector for cloning b: the dna fragments are connected to a carrier to be inserted into a host. c: the sticky ends of fragmented dna are joined with vector dna d: thw isolated genes are joined by using restriction enzimes.

The correct answer is option C.

Explanation:

Recombinant DNA is a combination of 2 or more DNA sequences created artificially by the process of Recombinant DNA technology. It is a product of genetic engineering made for different applications in genetic engineering.

The recombinant DNA is generating is possible due to the ability to cut and join the DNA molecule again with the help of enzymes. The fragmented DNA molecules have sticky ends that allow the vector DNA to joined at these sites, these sites known as restriction sites.

Thus, the correct answer is option - c. sticky ends of fragmented DNA are joined with vector DNA.