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The term heredity refers to the passing of traits from parent (or ancestors) to the offspring. The process of heredity involves an offspring cell or organism, which acquires or becomes predisposed to certain characteristics of its parent cell or organism. It is through heredity that variations exhibited by individuals and accumulate and therefore cause some species to evolve.

The study of heredity in the field of biology is called genetics, which includes the subfield epigenetics. Genetics as a discipline of biology is focused not only on heredity, but also on genes and the variation in all kinds of living organisms. Genetics also deals with the molecular structure and function of genes, as well as the behavior of the genes in the context of a cell or an organism. Patterns of inheritance from parent to offspring and gene distribution are also of interest for geneticists.

Eye color in humans is a typical example of an inherited characteristic. A person can inherit his or her brown eyes from one of the parents. However, for a person to have blue eyes, both parents must possess the blue-eyed gene. Genes control these inherited traits; the complete set of genes found within an organism’s genome is called its genotype. On the other hand, the term phenotype refers to the complete set of observable traits of the structure, as well as the behave of a particular organism.

Many traits in living organisms arise from the interaction of its genotype with the environment, and this is the reason why many aspects of an organism’s phenotype is not directly inheritable. However, heritable traits are known to be passed from generation to generation through DNA, the molecule that is responsible for encoding genetic information.

This category contains scientific information on heredity, which refers to the passing of traits from parent (or ancestors) to the offspring.

Population genetics of the inhabitants of the northern european part of the ussr estimation of the effective breeding size of a population using computer simulation of marriage migration processes

Revazov, A. A.; Lavrovskii, V. A.; Tarlycheva, L. V.; Kazachenko, B. N., 1981: Population genetics of the inhabitants of the northern european part of the ussr estimation of the effective breeding size of a population using computer simulation of marriage migration processes. Genetika 17(7): 1299-1303 The effect of assortative matings on some parameters of population [...]


Plant cell and tissue culture prospects for plant genetics and breeding

Bartkowiak E., 1985: Plant cell and tissue culture prospects for plant genetics and breeding. Genetica Polonica: 173-186 In this paper, possibilities of application of in vitro methods for a more precise and efficient genetic analysis as well as for improvement of crop plants are presented and discussed. It is concluded that in vitro techniques can [...]


Patterns of snake evolution suggested by their proteins

“Lawson R., 1987: Patterns of snake evolution suggested by their proteins. Fieldiana Zoology: 34 Genetic variability and other data on snake proteins are reviewed in the context of population genetics, species relationships, and current phylogenetic hypotheses. Protein diversity in snakes is comparable to that reported in other vertebrates, and protein polymorphisms are useful for identifying [...]


Mutagenic effects of sodium azide in rice oryza sativa ssp japonica

Nilan R.A., 1980: Mutagenic effects of sodium azide in rice oryza sativa ssp japonica. Crop Science: 663-668 Seeds of rice (O. sativa L. spp. japonica) cultivar M5 were presoaked in distilled water and treated for 2-3 h with 0, 0.12, 0.50, 0.75, 1.0, 1.25, 1.50 and 1.75 mM sodium azide solutions prepared in 0.1 M [...]


Methods for artificial inoculation and evaluation of wheat resistance to pseudomonas syringae pathovar atrofaciens mccull young dye wilkie ii. field experiments

Vasilev, V. I.; Karov, S., 1986: Methods for artificial inoculation and evaluation of wheat resistance to pseudomonas syringae pathovar atrofaciens mccull young dye wilkie ii. field experiments. Pochvoznanie Agrokhimiya i Rastitelna Zashtita 21(6): 93-100 Methods for artificial infection with basal glume rot (P. syringae pv. atrofaciens) were studied for their effect on a wide range [...]


Inheritance of sensitivity to the herbicide metribuzin in cultivated di ploid potatoes solanum tuberosum

De Jong H., 1983: Inheritance of sensitivity to the herbicide metribuzin in cultivated di ploid potatoes solanum tuberosum. Euphytica: 41-48 A method for screening populations of potato for sensitivity to metribuzin was developed. Plants grown from both tubers and true seed were screened in the greenhouse by growing them in a metribuzin-containing nutrient solution. Sensitivity [...]


Induction of ha ploid plantlets from unpollinated ovaries of nicotiana tabacum cultured in vitro

Wu H., 1981: Induction of ha ploid plantlets from unpollinated ovaries of nicotiana tabacum cultured in vitro. Acta Genetica Sinica: 63-65 In vitro culture of ovaries and ovules has been done many times, and some platelets were obtained; but, so far, the production of haploid plants derived from the unpollinated ovaries of N. tabacum has [...]


Improvement of crop plants via single cells in vitro an assessment

Potrykus I., 1979: Improvement of crop plants via single cells in vitro an assessment. Zeitschrift Fuer Pflanzenzuechtung: 1-30 The potential that single cell culture has for contributing to plant genetics and plant breeding will be fully realized when large, homogeneous populations of single totipotent cells (somatic cells, protoplasts or microspores) of crop plants are readily [...]


Immuno genetics of bcg induced anergy in mice control by genes linked to the igh complex

Moore V.L., 1982: Immuno genetics of bcg induced anergy in mice control by genes linked to the igh complex. Journal Of Immunology: 1466-1469 The genetics of Bcg-induced anergy were studied in mice by evaluating delayed hypersensitivity to sheep erythrocytes. Data obtained using congenic mice and by linkage analysis suggested that genes linked to the H-2 [...]


House fly musca domestica diptera muscidae genetics field studies of males from a male producing strain

Birkenmeyer D., 1983: House fly musca domestica diptera muscidae genetics field studies of males from a male producing strain. Annals Of The Entomological Society Of America: 333-338 Male house flies (M. domestica L.), which produced only male progeny when mated with wild-type females were released on a dairy farm in Minnesota during the fly breeding [...]