A Gene That Contains Introns Can Be Made Shorter (But

question 4

Multiple Choice

A gene that contains introns can be made shorter (but remain functional) for genetic engineering purposes by using

• A) RNA polymerase to transcribe the gene.
• B) a restriction enzyme to cut the gene into shorter pieces.
• C) reverse transcriptase to reconstruct the gene from its mRNA.
• D) DNA polymerase to reconstruct the gene from its polypeptide product.
• E) DNA ligase to put together fragments of the DNA that code for a particular polypeptide.

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Definitions:

Sodium

A soft, silver-white, highly reactive metal belonging to the alkali metal series in the periodic table, denoted by the symbol Na.

Calcium Carbonate

A white, insoluble solid (CaCO3) occurring naturally as chalk, limestone, marble, and forming the shells of sea creatures.

Combustion

A chemical reaction that occurs between a fuel and an oxidant, producing heat and often light; commonly known as burning.

Rusting

The chemical process involving the oxidation of iron or steel, resulting in the formation of iron oxides, particularly Fe2O3 and Fe3O4.