click below
click below
Normal Size Small Size show me how
Genetics Studyguide
...
Question | Answer |
---|---|
genetics | the science of heredity, dealing with resemblances and differences of related organisms resulting from the interaction of their genes and the environment. |
hybrid | The offspring of two animals or plants of different breeds, varieties, species, or genera, esp. as produced through human manipulation for specific genetic characteristics. |
Genes | a segment of DNA (on a specific site on a chromosome) that is responsible for the physical and inheritable characteristics or phenotype of an organism. It also specifies the structure of a protein, and an RNA molecule. |
alleles | One member of a pair (or any of the series) of genes occupying a specific spot on a chromosome (called locus) that controls the same trait. |
homozygous | Of, or pertaining to an individual (or a condition in a cell or an organism) containing two copies of the same allele for a particular trait located at similar positions (loci) on paired chromosomes (see homologous chromosomes). |
genotype | (1) The entire set of genes in an organism. (2) A set of alleles that determines the expression of a particular characteristic or trait (phenotype). (zoology) The genetic makeup of an individual or taxon. |
phenotype | (1) The physical appearance or biochemical characteristic of an organism as a result of the interaction of its genotype and the environment. |