Function of the RNA primer: DNA polymerases need a double-stranded DNA region to which they can attach in order to begin copying the rest of the DNA strand. In order to provide this double-stranded attachment site, RNA primers are added by primase, an RNA polymerase which does not require such an attachment site itself.
Alimony definition, Law. an allowance paid to a person by that person's spouse or former spouse for maintenance, granted by a court upon a legal separation or a divorce or while action is pending. See more.
Parsimony (Molecular Biology). Parsimony is one of the principles of phylogenetic tree reconstruction in which the phylogeny of a group of species or genes is inferred to be the branching pattern that requires the smallest number of evolutionary changes (1).he merit of using the parsimony principle is that we can infer the amino acid or nucleotide sequences of all the intermediate stages in the continuous lineage between the ancestor and the present species. The intermediate stages may be trustworthy, however, only when closely-related genes are compared.