Excercises

3: Qualifiers

Pick a data base in entrez and find the available qualifiers entrez_db_searchable("sra"). You can look up the search fields and qualifiers here: https://www.ncbi.nlm.nih.gov/entrez/query/static/help/Summary_Matrices.html#Search_Fields_and_Qualifiers. Using the qualifiers perform a search on a topic of your choice. Explore the object that R returns.