types:
cistron,
factor,
gene
(genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity
string
a linear sequence of symbols (characters or words or phrases)
combination
a sequence of numbers or letters that opens a combination lock
Fibonacci sequence
a sequence of numbers in which each number equals the sum of the two preceding numbers
codon
a specific sequence of three adjacent nucleotides on a strand of DNA or RNA that specifies the genetic code information for synthesizing a particular amino acid
dominant gene
gene that produces the same phenotype in the organism whether or not its allele identical
allele,
allelomorph
(genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
genetic marker
a specific gene that produces a recognizable trait and can be used in family or population studies
homeotic gene
one the genes that are involved in embryologic development
lethal gene
any gene that has an effect that causes the death of the organism at any stage of life
mutant gene
a gene that has changed so that the normal transmission and expression of a trait is affected
nonallele
genes that are not competitors at the same locus
operator gene
a gene that activates the production of messenger RNA by adjacent structural genes
polygene
a gene that by itself has little effect on the phenotype but which can act together with others to produce observable variations
proto-oncogene
a normal gene that has the potential to become an oncogene
recessive gene
gene that produces its characteristic phenotype only when its allele is identical
structural gene
a gene that controls the production of a specific protein or peptide
transgene
an exogenous gene introduced into the genome of another organism
substring
a string that is part of a longer string