Molecular Biology and Genetics

Yes, it is correct. UUU do not code for amino acids that function as stop codons.

Deoxyuridine monophosphate is a deoxynucleotide. It is an intermediate in the metabolism of deoxyribonucleotides.

Phosphoryl groups of nucleotides furnish H+ ions at physiological pH and thus leave nucleotides negatively charged.

Purines and pyrimidines have amine and keto groups attached to the heterocyclic ring.

At pH 7.0 all common nucleotides absorb light at a wavelength close to 260 nm. Conjugated double bonds of purines and pyrimidine derivatives absorb ultravoilet light.

This option is correct because BLOSUM is a substitution matrix in which scores for each position are derived from observations of the frequencies of substitutions.

This option is correct because COG  is a protein family database based on phylogenetic classification.

The antimetabolite aminopterin blocks the cellular biosynthesis of purines and pyrimidines from simple sugars and amino acids while HGPRT and TK supply them from hypoxanthine and thymidine.

UniProt is a comprehensive, high-quality and freely accessible database of protein sequence and functional information, many entries being derived from genome sequencing projects.

The Protein Data Bank (PDB) is a crystallographic database for the three-dimensional structural data of large biological molecules, such as proteins and nucleic acids.

PROSITE is a protein database. It consists of entries describing the protein families, domains and functional sites as well as amino acid patterns and profiles in them.

The Structural Classification of Proteins (SCOP) database is a largely manual classification of protein structural domains based on similarities of their structures and amino acid sequences. A motivation for this classification is to determine the evolutionary relationship between proteins.

The Biological Macromolecule Crystallization Database (BMCD) contains molecule, crystal and crystallization data for macromolecules for which diffraction quality crystals have been obtained. These include proteins and nucleic acids, various complexes, and viruses.

InterPro is a database of protein families, domains and functional sites in which identifiable features found in known proteins can be applied to new protein sequences in order to functionally characterise them.

The Biological General Repository for Interaction Datasets (BioGRID) is a curated biological database of protein-protein interactions, genetic interactions, chemical interactions, and post-translational modifications created in 2003 (originally referred to as simply the General Repository for Interaction Datasets (GRID) by Mike Tyers, Bobby-Joe Breitkreutz, and Chris Stark at the Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital.