Which description applies to alternative mRNA splicing? 1. heritable changes in gene expression that occur without altering the DNA sequence 2. processing of exons in mRNA that results in a single gene coding for multiple proteins 3. mRNA modifications such as additions of a 5′‑cap and 3′ poly‑A tail and removal of introns 4. a gene cluster controlled by a single promoter that transcribes to a single mRNA strand 5. protein modifications such as addition of a functional group or structural changes such as folding

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Which description applies to alternative mRNA splicing?

 

1. heritable changes in gene expression that occur without altering the DNA sequence

 

2. processing of exons in mRNA that results in a single gene coding for multiple proteins

 

3. mRNA modifications such as additions of a 5′‑cap and 3′ poly‑A tail and removal of introns

 

4. a gene cluster controlled by a single promoter that transcribes to a single mRNA strand

 

5. protein modifications such as addition of a functional group or structural changes such as folding

 

Answer 2 is correct.

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