Practice Questions

TLS Online TPP Program

#Question id: 2787

All the following statements are true about a nucleosome except:

#Environmental Science

It contains an octamer core of histones.
It is about 10 nm in diameter.
It is the “string” of the “beads-on-a-string” appearance.
It contains approximately 150 base pairs of DNA.

More Questions

TLS Online TPP Program

#Question id: 39840

#Bio-Informatics

Q. You are looking for information regarding protein families, motifs, and functional classifications. Which type of database should you consult?

TLS Online TPP Program

#Question id: 39841

#Bio-Informatics

Q. Match the following database to its correct category: PDB (Protein Data Bank)

TLS Online TPP Program

#Question id: 39842

#Bio-Informatics

Q. What is the primary difference in "Data Source" between primary and secondary databases?

TLS Online TPP Program

#Question id: 39843

#Bio-Informatics

Q. Assertion: GenBank, EMBL, and DDBJ contain essentially the same raw nucleotide sequence data.

Reason: These three databases form the International Nucleotide Sequence Database Collaboration (INSDC) and exchange data on a daily basis.

TLS Online TPP Program

#Question id: 39844

#Bio-Informatics

Q. Assertion: The Protein Data Bank (PDB) is classified as a primary biological database.

Reason: It stores raw experimental results, such as atomic coordinates, directly submitted by researchers.

TLS Online TPP Program

#Question id: 39845

#Bio-Informatics

Q. Assertion: Flat-file structures are no longer used in modern primary databases like the PDB.

Reason: Relational databases are more complex to design than flat-file structures.