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Understanding Introns and Exons Practice Test
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Q1
In a eukaryotic cell, a molecule of pre-mRNA is found to have four exons and three introns. Which of the following are possible combinations of the exons, if the order in which they are written is the order in which they will be translated?
I. Exon 1, Exon 2, Exon 3, Exon 4
II. Exon 1, Exon 3, Exon 4
III. Exon 4, Exon 1, Exon 2, Exon 3
In a eukaryotic cell, a molecule of pre-mRNA is found to have four exons and three introns. Which of the following are possible combinations of the exons, if the order in which they are written is the order in which they will be translated?
I. Exon 1, Exon 2, Exon 3, Exon 4
II. Exon 1, Exon 3, Exon 4
III. Exon 4, Exon 1, Exon 2, Exon 3