Answer for question in bioinformatics course

Answer:

a) Because in apl3_diagr we see that the molecule is part of the species/fila/kingdom of crambinae, and that has crambin 'in it'. With crambin* you will thus find crambinae too. In ADA17_HUMAN, somewhere in the Feature Table, you see:

region 	 603 	 671 	69 	Crambin-like.

And search engines like Google and MRS use the - sign as a valid word-separator.

b) You can move between several views:

The nice human readable view, called ′Entry′ that you get by default.
The internal representation of the file as so-called plain text file or flat file .
The so-called FASTA file. This very minimal format is needed for BLAST, Clustal, and MRS sequence alignments.

By the way, the option Find Similar finds you all files in the selected databases (databanks) that contain words similar to the text in the entry you are looking for, and the option Blast does just that, it extracts the sequence from the entry you are presently looking at and automatically fills it in in the Blast sequence input box.