In smooth and striated muscle cells the DNA for tropomyosin is the same, yet the mRNAs produced are different. Which of the following statements explains this phenomenon?

+2 votes

 

A shorter region of the tropomyosin DNA in striated muscles cells is transcribed into mRNA, resulting in a smaller mRNA transcript.

The presence of cell-type-specific compounds influences the splicing patterns of the mRNA.

The tropomyosin gene is very large and contains a large number of introns and exons.

Distinct tropomyosin proteins are produced in the two cell types.

 

asked Dec 27, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

The presence of cell-type-specific compounds influences the splicing patterns of the mRNA.

 

answered Dec 27, 2012 by JPx ~Expert~ (379 points)



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