Question

Incorrectly matched pair?

• A. NCBI -- GenBank
• B. EBI -- EMBL
• C. ExPASy -- Swiss-Prot
• D. PDB -- NCBI

Hint:

Important database associations: \[ \boxed{ \begin{aligned} \text{NCBI} &\rightarrow \text{GenBank} \text{EBI} &\rightarrow \text{EMBL/ENA} \text{ExPASy} &\rightarrow \text{Swiss-Prot} \text{PDB} &\rightarrow \text{3D biomolecular structures} \end{aligned} } \]

Answer 1

The Correct Option is D

Step 1: Recall the associations of major biological databases. \[ \boxed{ \begin{aligned} \text{NCBI} &\rightarrow \text{GenBank} \text{EBI} &\rightarrow \text{EMBL/ENA} \text{ExPASy} &\rightarrow \text{Swiss-Prot (UniProt)} \end{aligned} } \]

Step 2: Identify the incorrect pair. The Protein Data Bank (PDB) is an independent international repository for three-dimensional biomolecular structures and is not associated with NCBI. Therefore, \[ \boxed{\text{PDB -- NCBI}} \] is the incorrectly matched pair. Hence, \[ \boxed{(D)} \] is the correct answer.