Transcription of the developmental gene M is influenced by two different protein
ID: 100118 • Letter: T
Question
Transcription of the developmental gene M is influenced by two different proteins: B and H. Studies of single and double mutants generated the following information:
•In mutants lacking B, transcription of M does occur
•In mutants lacking H, transcription of M does not occur.
•In double mutants lacking B and H, transcription of M does occur.
Based on this information, put these genes in order in a developmental pathway. Use arrows and t-bars between the genes as appropriate. Choose the correct identity of each box below.
Gene 1st Symbol Gene 2nd symbol outcome
B -----> arrow B ------>arrow
M transcribed
H -----| T-bar H ------| T-bar
Explanation / Answer
Transcription of the developmental gene M is influenced by two different proteins: B and H. Studies of single and double mutants generated the following information:
•In mutants lacking B, transcription of M does occur
•In mutants lacking H, transcription of M does not occur.
•In double mutants lacking B and H, transcription of M does occur.
Based on this information, put these genes in order in a developmental pathway that is - B -It bar H arrow M transcribed.
Transcription is the process of RNA synthesis, regulated by the collaboration of promoters and enhancers. The various types of RNA produced, including messenger RNA (mRNA), which specifies the sequence of amino acids in the protein product, plus transfer RNA (tRNA) and ribosomal RNA (rRNA), which play a role in the translation process.
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