Question

Which of the following is an incorrect statement?

(a) The last column contains the sequences themselves

(b) It is quite tough making an index of the information in each of these fields so that a search query can locate all the occurrences through the index

(c) If one imagines a large table with each sequence entry occupying one row, then each column will include one of the above types of information for each sequence, and each column is called a FIELD

(d) The DNA, protein, and reference databases have all been cross-referenced so that moving between them is readily accomplished

This question was posed to me during an interview for a job.

My enquiry is from Multiple Sequence Formats & Storage of Information in a Sequence Database topic in chapter Collecting & Storing Sequences in Laboratory of Bioinformatics

Answer 1

Correct choice is (b) It is quite tough making an index of the information in each of these fields so that a search query can locate all the occurrences through the index

To explain: It is very easy to make an index of the information in each of these fields so that a search query can locate all the occurrences through the index. Even related sequences are cross-referenced. In addition, the information in one database can be cross-referenced to that in another database.