Question

In genetic engineering, a chimera is:
A. an enzyme that links DNA molecules.
B. a plasmid that contains foreign DNA.
C. a virus that infects bacteria.
D. fungi.

Answer 1

Hint: Genetic engineering is a process that is using laboratory-based technologies to modify DNA makeup of an organism. Genetic engineering is also known as genetic manipulation or genetic modification.

Complete Step-by-step answer: In genetics, a chimera is a tissue or an organism that includes at least two distinct sets of DNAs, most often derived from the fusion of so many various zygotes (fertilized eggs). The term is derived from the Chimera of Greek mythology, a fire-breathing monster that was part goat, part lion, and part dragon. Thus, a chimera is a plasmid that contains foreign DNA and has the DNA of two species. Plasmids with foreign DNA inserted into them are known as recombinant DNA molecules because they include new combinations of genetic material. Proteins that are produced from recombinant DNA molecules are known as recombinant proteins. Not all recombinant plasmids can express genes.

A bacteriophage is a kind of virus that infects bacteria. 

Fungi are eukaryotic organisms that contain microorganisms like moulds, yeasts, and mushrooms. These organisms are classified under kingdom fungi.

DNA ligase is a DNA-joining enzyme. If two pieces of DNA have corresponding ends, ligase can link them to create a single, unbroken molecule of DNA.
Therefore the correct answer is Option B.
Note: In 1972 Paul Berg has started genetic engineering. With the help of the lambda phage, he can introduce an SV-40 virus gene into a bacterium. Berg is often called the Father of Genetic Engineering. He was awarded the Nobel Prize in 1980.