click below
click below
Normal Size Small Size show me how
09. Genetics 2
Genetics 2 and Biotechnology
Term | Definition |
---|---|
carrier | a person that has inherited a recessive allele for a genetic trait or mutation but does not display that trait or show symptoms of the disease |
sex-linked gene | a gene that is located on a sex chromosome |
incomplete dominance | a condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully |
codominance | a condition in which both alleles for a gene are fully expressed |
multiple alleles | more than two alleles for a genetic trait |
autosome | any chromosome that is not a sex chromosome |
gel electrophoresis | method of separating various lengths of DNA strands by applying an electrical current to a gel |
stem cell | a cell that can divide for long periods of time while remaining undifferentiated |
genotypic ratio | expected number of offspring that possess a certain combination of genes |
phenotypic ratio | expected number of offspring that possess a particular physical characteristic |
DNA fingerprinting | a pattern of DNA characteristics that is unique, or nearly so, to an individual organism |
genetic engineering | a technology in which the genome of a living cell is modified for medical or industrial use |
chromosomal analysis | a test that evaluates the structure and number of a person's chromosomes in order to detect any abnormalities |
genome | the complete genetic material contained in an individual or species |
karyotype | an image of all of the chromosomes in a cell |
sex chromosome | one of the pair of chromosomes that determine the sex of an individual (X or Y) |