Asegment of dna that is artificially created from two or more organisms, through use of dna enzymes in a laboratory is called
a. a clone.
b. a vector. eliminate
c. plasmid dna.
d. recombinant dna.

The correct answer is option D, recombinant DNA

Explanation:

Recombinant DNA is produced by combining the DNA strands from two or more species to produce an indistinctive genome from multiple source. For example – Human insulin recombinant DNA is produced by taking out the insulin coding gene from the human pancreas and combining it with the plasmid DNA of bacteria. This recombinant DNA  containing human insulin is then again inserted into the bacteria to produce several copies of it.  

answer by yourhope:

hi! : )

in which structure in the nucleus are ribosomes made?

b) nucleolus!

: )

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.