The principle underlying how salmon were genetically engineered to grow faster is the
A) removal of a gene responsible for feeling full after eating.
B) replacement of inducible to constitutive hormone production.
C) resistance to bacterial infections which waste metabolic energy in the salmon to fight off.
D) addition of genes to enhance blood circulation and tissue development.

Question

Quizplus · Accepted Answer

The genetic engineering approach used to make salmon grow faster involves replacing the regulatory sequence of an inducible gene (GH1) with the regulatory sequence of a constitutive gene (Cytomegalovirus promoter), resulting in constant production of a growth hormone critical for growth and development. This manipulation leads to increased growth rate and reduced time to market size. The other choices listed are not directly related to the genetic modification strategy used for faster salmon growth.

The Principle Underlying How Salmon Were Genetically Engineered to Grow