Thought Question


There are 3 exons in this gene and we'll assume that they may be alternatively spliced together.
How many different mRNAs can be generated for this gene?
a)  3          b)  6          c)  7          d)  24          e)  72
  exon splicing

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Answer
  Assuming that all 3 exons can be alternatively spliced then seven distinct mRNAs may be generated from this gene.
                         a)  3          b)  6          c)  7          d)  24          e)  72
  ans
7 different mRNAs can produce 7 different proteins from only one DNA segment.  Wow!
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