In eukaryotes, the cap site is the position in the gene at which transcription starts, and really should be called the "transcription initiation site". The first nucleotide is transc [..]

It is the external protein coat of a virus particle.

A strand of RNA synthesized in-vitro (usually radiolabeled) and used as a probe for hybridization reactions. An RNA probe can be synthesized at very high specific activity, is single stranded (and the [..]

It refers to the movement of a single replication fork from a given origin.

One of the purine bases found in DNA and RNA (6-aminopurine), one member of the base pair A-T (adenine- thymine).

An enzyme which catalyzes the hydrolysis of phosphomonoesters of the 5' nucleotides. Used to dephosphorylate (remove phosphate groups from) the 5' ends of DNA or RNA molecules, to facilitate [..]

An allele is one of the alternative (two or more) forms of a particular gene inherited separately from each parent; usually found at the same locus on homologous chromosomes. Equivalent genes in the t [..]

A family of sequence-related elements about 300 bp in length approximately 500 000 copies of which are scattered along the human genome.

It is the nucleotide triplet UAG one of the three codons that cause the termination of protein synthesis.

It descibes any change in the DNA that creates an amber codon at a site previously occupied by a codon representing an amino acid in a protein.