Complementation refers to the ability of independent(nonallelic)genes to provide diffusible products that produce wild phenoty pe when two mutants are tested in trans configuration in a In vitro complementation assay consists of identifying a component of a wid-ty pe cell that can confer activity on an extract prepared from a mutant cell. The assay identifies the component rendered inactive by the mutation Complementation group is a series of mutations unable to complement when tested in pairwise combinations in trans, defines a genetic unit(the cistron) that might better be called a noncomplex mentation group Complex locus(of D. melanogaster) has genetic properties inconsistent with the function of a gene representing a single protein. Complex loci are usually very large(>100kb) at the molecular level Complexity is the total length of different sequences of dNa present in a given preparation Compostie transposons have a central region flanked on each side by insertion sequences, either or both of which may enable the entire element to transpose Concatemer of dNA consists of a series of unit genomes repeated in tandem Concatenated circles of DNA are interlocked like rings one a chain Concerted evolution describes the ability of two related genes to evol ve together as though Conden sation reaction is one in which a covalent bond is formed with loss of a water molecule, as in the addition of an amino acid to a polypeptide chain Condition al lethal mutations kill a cell or virus under certain(nonpermissive)conditions, but allow it to survive under other(permissive)conditions Conjugation describes mathing between two bacterial cells, when (part of chromosome is transferred from one to the other Consensus sequence is an idealized sequence in which each position represents the base most often found when many actual sequences are compared Conservative recombin ation invol ves breakage and reunion of preexisting strands of dnA without any synthesis of new stretches of DNA Conservative transposition refers to the movement of large elements, originally classified transposons, but now considered to be episomes. The mechanism of movement resembles that Const ant regions of immunoglobulins are coded by C genes and are the parts of the chain that vary least. Those of heavy chains identify the type of immunoglobulin Constitutive genes are expressed as a function of the interaction of rna poly merase with the promoter, without additional regulation; sometimes also called household genes in the context of describing functions expressed in all cells at a low level6 cell. Complementation refers to the ability of independent (nonallelic)genes to provide diffusible products that produce wild phenotype when two mutants are tested in trans configuration in a heterozygote. In vitro complementation assay consists of identifying a component of a wid-type cell that can confer activity on an extract prepared from a mutant cell. The assay identifies the component rendered inactive by the mutation. Complementation group is a series of mutations unable to complement when tested in pairwise combinations in trans; defines a genetic unit (the cistron) that might better be called a noncomplex mentation group. Complex locus (of D. melanogaster) has genetic properties inconsistent with the function of a gene representing a single protein. Complex loci are usually very large (>100kb) at the molecular level. Complexity is the total length of different sequences of DNA present in a given preparation. Compostie transposons have a central region flanked on each side by insertion sequences, either or both of which may enable the entire element to transpose. Concatemer of DNA consists of a series of unit genomes repeated in tandem. Concatenated circles of DNA are interlocked like rings one a chain. Concerted evolution describes the ability of two related genes to evolve together as though constituting a single locus. Condensation reaction is one in which a covalent bond is formed with loss of a water molecule, as in the addition of an amino acid to a polypeptide chain. Conditional lethal mlutations kill a cell or virus under certain (nonpermissive) conditions, but allow it to survive under other (permissive) conditions. Conjugation describes ‘mathing’ between two bacterial cells, when (part of ) the chromosome is transferred from one to the other. Consensus sequence is an idealized sequence in which each position represents the base most often found when many actual sequences are compared. Conservative recombination involves breakage and reunion of preexisting strands of DNA without any synthesis of new stretches of DNA. Conservative transposition refers to the movement of large elements, originally classified as transposons, but now considered to be episomes. The mechanism of movement resembles that of phage lambda. Constant regions of immunoglobulins are coded by C genes and are the parts of the chain that vary least. Those of heavy chains identify the type of immunoglobulin. Constitutive genes are expressed as a function of the interaction of RNA polymerase with the promoter, without additional regulation; sometimes also called household genes in the context of describing functions expressed in all cells at a low level