### order | series | sequence:

Gene sequence
* Most gene sequence analyses enable identification.
* are more likely to be conserved during evolution than intergenic sequences
  - the order of letters in the DNA alphabet
* can only give the amino acid sequence that is translated by the ribosome.
* change as a result of mutation.

### order | series | sequence | gene:

Abnormal gene
* can also serve as diagnostic markers for associated diseases.
* produce abnormal hemoglobin, which in turn produces abnormal red blood cells.

Active gene
* leave telltale traces where they match up with mapped locations on the chip.
* tend to be associated with the nuclear matrix.

### order | series | sequence | gene:

Allele
* All alleles show a recessive, maternal-effect, embryonic lethal phenotype.
* Most alleles are common to all populations and few are localized or rare.
* Some alleles act as recessive lethals.
* Some alleles are dominant, while other alleles are recessive
  - dominate or recessive to each other
  - more dominant than others
  - associated with human genetic disorders are recessive lethal
  - dont show effects until after reproduction
* are A. alternate forms of a single gene
  - alternate forms of genes found on chromosomes
  - alternative forms of the gene
  - alternatives of one gene
  - an alternate form of a gene for one trait
  - differences in the DNA sequence of a gene
* are different forms of genes for one trait
  - variants of a particular gene
  - variations of specific genes
* are different versions of a specific trait
  - genes that impart the same characteristic
  - or forms of ONE gene
  - gene variants caused by mutation
  - just broad variants of a gene that can produce different results
  - recessive but then are triggered by hormonal differences in the sexes
  - responsible for variations in a trait
  - slightly different molecular forms of the same gene, which are shuffled during meiosis
  - two or more slightly different molecular forms of the same gene
  - variants of one gene
  - various molecular forms of a gene for the same trait
  - versions of a trait
* arise by mutation.
* can be dominant or recessive
  - recessive, dominant, and codominant
  - exist in alternative forms and organisms typically have two alleles for a given trait
* come from the genes that are located on the chromosomes inside the nucleus.
* determine which antigens are present on the cells.
* differ by origin if they come from the same locus on different chromosomes.
* exist only because the original wild-type gene has mutated at some time.
* fall into six classes based on somatic, gonadal and dauer phenotypes.
* occupy the same locus, or position, on chromosomes.
* pass into different reproductive cells, called gametes.
* produce different effects on the same trait - for example, horns vs polls.
* segregate from each other in meiosis , but join randomly in fertilization
  - one another during the formation of gametes
  - independently yielding four possible allelic combinations in gametes
+ Allele, Different alleles at a locus: Chromosomes
  * Alleles differ by origin if they come from the same locus on different chromosomes. Thus, for example, the two alleles at a particular locus in a diploid individual are 'always' different by origin. They sit on different chromosomes.

### order | series | sequence | gene | allele:

Different allele
* allow for a variety of a given characteristic, e.g., fur color.
* are different particles found in gametes
  - phenotypes for a particular character
* have different sequences of nucleic acid bases.
* produce variation in inherited characteristics such as hair and eye color
  - variations in inherited characteristics, such as eye color or blood type