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Вивчайте Challenge: Motif Search in Multiple Sequences | DNA and Sequence Analysis
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bookChallenge: Motif Search in Multiple Sequences

Automating the search for motifs across multiple DNA sequences is a fundamental task in regulatory genomics, where you often need to locate short, recurring patterns in large datasets. By developing a Python function to systematically scan each sequence for a given motif, you can quickly identify all positions where the motif occurs, including overlapping matches. This approach streamlines analyses such as promoter scanning, transcription factor binding site mapping, or any scenario where motif detection in DNA is required.

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Create a function to automate motif searching across multiple DNA sequences. Your function should return a dictionary mapping each input sequence to a list of starting positions where the motif occurs, including overlapping matches.

  • Iterate through each sequence in the input list.
  • For each sequence, check every possible starting position for the motif.
  • If the motif matches at that position, record the starting index.
  • Include overlapping motif matches.
  • Return a dictionary with each sequence as a key and a list of motif start positions as the value.

Рішення

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bookChallenge: Motif Search in Multiple Sequences

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Automating the search for motifs across multiple DNA sequences is a fundamental task in regulatory genomics, where you often need to locate short, recurring patterns in large datasets. By developing a Python function to systematically scan each sequence for a given motif, you can quickly identify all positions where the motif occurs, including overlapping matches. This approach streamlines analyses such as promoter scanning, transcription factor binding site mapping, or any scenario where motif detection in DNA is required.

Завдання

Swipe to start coding

Create a function to automate motif searching across multiple DNA sequences. Your function should return a dictionary mapping each input sequence to a list of starting positions where the motif occurs, including overlapping matches.

  • Iterate through each sequence in the input list.
  • For each sequence, check every possible starting position for the motif.
  • If the motif matches at that position, record the starting index.
  • Include overlapping motif matches.
  • Return a dictionary with each sequence as a key and a list of motif start positions as the value.

Рішення

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Все було зрозуміло?

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Дякуємо за ваш відгук!

Секція 1. Розділ 5
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