All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources
Example Questions
Example Question #451 : Gre Subject Test: Biochemistry, Cell, And Molecular Biology
Which of the following is a recognized mode of alternative splicing?
Possible Answers:
Mutually exclusive exons
All of these
Alternative donor site
Alternative acceptor site
Exon skipping
Correct answer:
All of these
Explanation:
The correct answer is all of the other answers. Exon skipping is the most common mode in mammals and occurs when an exon is spliced out of the primary transcript. Mutually exclusive exon splicing occurs when one of two exons is retained, but not both. Alternative donor site occurs when an alternative 5' splice junction is used which will change the 3' end of the upstream exon. Alternative acceptor site occurs when there is an alternative 3' split junction and the 5' end of the downstream exon is changed.
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All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources
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