The directed movement into, out of or within the cell of urea, the water-soluble compound H2N-CO-NH2, produced in the liver via the ornithine-urea cycle.

Catalysis of the hydrolysis of phosphodiester bonds in chains of RNA.

In nucleotide excision repair a small region of the strand surrounding the damage is removed from the DNA helix as an oligonucleotide. The small gap left in the DNA helix is filled in by the sequential action of DNA polymerase and DNA ligase. Nucleotide excision repair recognizes a wide range of substrates, including damage caused by UV irradiation (pyrimidine dimers and 6-4 photoproducts) and chemicals (intrastrand cross-links and bulky adducts).

The process whose specific outcome is the progression of an embryo from zygote formation until the end of its embryonic life stage. The end of the embryonic stage is organism-specific and may be somewhat arbitrary. For example, it would be at birth for mammals, larval hatching for insects and seed dormancy in plants.

The process by which DNA replication is started; this involves the separation of a stretch of the DNA double helix, the recruitment of DNA polymerases and the initiation of polymerase action.

The directed movement of organic acids, any acidic compound containing carbon in covalent linkage, into, out of, within or between cells.

The process whose specific outcome is the progression of the organism over time, from the completion of embryonic development to the mature structure. See embryonic development.

The process by which a DNA strand is synthesized from template DNA by the action of polymerases, which add nucleotides to the 3' end of the nascent DNA strand.

The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism specific and may be somewhat arbitrary; for mammals it is usually considered to be birth; for insects the hatching of the first instar larva from the eggshell. As in, but not restricted to, the multicellular animals (Metazoa, ncbi_taxonomy_id:33208).