The Gene Explorer (GeneX), from the biology department at UMB, simulates the transcription, splicing, processing, and translation of a small hypothetical eukaryotic gene. GeneX allows students to make specific mutations in a gene sequence, and it then calculates and displays the effects of the mutations on the mRNA and protein.
Specifically, the Gene Explorer does the following:
For more information about the Gene Explorer, see The Gene Explorer.
<problem> <p>Make a single base pair substitution mutation in the gene below that results in a protein that is longer than the protein produced by the original gene. When you are satisfied with your change and its effect, click the <b>SUBMIT</b> button.</p> <p>Note that a "single base pair substitution mutation" is when a single base is changed to another base; for example, changing the A at position 80 to a T. Deletions and insertions are not allowed.</p> <script type="loncapa/python"> def genex_grader(expect,ans): if ans=="CORRECT": return True import json ans=json.loads(ans) return ans["genex_answer"]=="CORRECT" </script> <customresponse cfn="genex_grader"> <editageneinput width="818" height="1000" dna_sequence="TAAGGCTATAACCGAGATTGATGCCTTGTGCGATAAGGTGTGTCCCCCCCCAAAGTGTCGGATGTCGAGTGCGCGTGCAAAAAAAAACAAAGGCGAGGACCTTAAGAAGGTGTGAGGGGGCGCTCGAT" genex_dna_sequence="TAAGGCTATAACCGAGATTGATGCCTTGTGCGATAAGGTGTGTCCCCCCCCAAAGTGTCGGATGTCGAGTGCGCGTGCAAAAAAAAACAAAGGCGAGGACCTTAAGAAGGTGTGAGGGGGCGCTCGAT" genex_problem_number="2"/> </customresponse> </problem>
In this code: