One of the more formidable obstacles to mammalian gene cloning is the presence of
A) integrators.
B) exons.
C) introns.
D) repressors.

Name: One of the more formidable obstacles to mammalian gene cloning is the presence of A) integrators. B) exons. C) introns. D) repressors.
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Question

Quizplus · Accepted Answer

Introns are non-coding sequences found within genes that must be removed for proper expression of the gene. Cloning a gene that contains introns requires additional steps to remove them before the gene can be expressed.

One of the More Formidable Obstacles to Mammalian Gene Cloning