The term genotype refers to the genetic structure of a cell, an organism, or an individual. A common application of this term is in the case of the specific allele makeup of the individual, usually with the reference to a specific characteristic taken under consideration. In the human CFTR gene, which is responsible for encoding a protein that transports chloride ions across the cell membranes can be dominant (which means that it is the normal version of the gene) or recessive (which means that it is the mutated version of the gene). Individuals that have two recessive alleles of the human CFTR gene will be diagnosed with cystic fibrosis.
Genotype is closely related to the genomic sequence, but there are subtle differences between the two. The term genomic sequence refers to the absolute measure of base composition of an individual, or a representative of a specific species or group. The term genotype, on the other hand, refers to the measurement of an individual organism differs within a group of other individuals or a species.
The difference between genotype and phenotype is often encountered in the study of family patterns for particular hereditary diseases or conditions, such as in the case of hemophilia. There are two alleles for any given genes, especially in humans and most animals. These alleles can be of the same variety (homozygous) or of different ones (heterozygous) depending on the individual of interest. With a dominant allele, the offspring can be expected to inherit the trait in question, regardless of the second allele. In the case of a recessive allele, such as in the case of albinism, the phenotype depends on the other allele.
This category contains scientific information on genotype, the genetic structure of a cell, an organism, or an individual.
Barrett S.C.H., 1985: Floral trimorphism and monomorphism in continental and island populations of eichhornia paniculata pontederiaceae. Biological Journal Of The Linnean Society: 41-60 E. paniculata (Spreng.) Solms. (Pontederiaceae) is a short-lived perennial or annual of marshes, seasonal pools and ditches of lowland tropical South America, primarily Ne Brazil, and the Caribbean islands of Cuba and [...]
Dutta R.K., 1988: Fiber yield of mutants of white jute corchorus capsularis with altered phenological development patterns. Field Crops Research3: 101-112 The standard cultivar, D-154, and one early-flowering and four late-flowering mutants derived from it were sown at a central location in Bangladesh on seven occasions at 15 or 16-day intervals in 1978 and 197 [...]
Stoinova B., 1984: Fertility of inbred sunflower lines after a long period of inbreeding. Genetika I Selektsiya: 204 Fertility was studied of 6 model inbred lines (I18-I27) and of cv. Peredovik developed by 4 ways of pollination: natural self-pollination (control), self-pollination without intervention (i.e., within the individual flower), self-pollination with intervention (i.e., within the inflorescence) [...]
Berger G., 1980: Fertility of cows of various genotypes in re breeding to friesian dairy cattle. Monatshefte Fuer Veterinaermedizin: 812-814 Studies conducted on various genotypes and their bearings upon parturition and on some fertility parameters showed favorable results for the process of rebreeding animals with Friesians, when modern genotypes were used.
Yokoo M., 1984: Female sterility in an indica japonica cross of rice oryza sativa. Japanese Journal Of Breeding: 219-227 Typical female sterility is found in the backcrossed progenies that were developed in the breeding program to incorporate the blast resistance of an Indonesian cultivar Tjina into a Japanese cultivar Fujisaka The F1 of ‘Fujisaka 5′.times. [...]
Lyrene P.M., 1988: Fecundity of crosses between tetraploid and hexaploid vaccinium. Journal Of The American Society For Horticultural Science: 592-595 The purpose of this study was to compare the relative fecundity of tetraploid.times. hexaploid and hexaploid.times. tetraploid crosses in blueberry. Four types of crosses were made using cultivars and advanced breeding lines consisting largely of [...]
Horst P., 1986: Fattening performance of pigs in rotational crossbreeding between pietrain and german landrace breeds. Zuechtungskunde: 364-373 In the present study the growth and fattening performance of pigs in rotational crossbreeding over eight generations between Pietrain and German Landrace breeds was investigated. Altogether the analysis of piglet performance included 2826 animals and the analysis [...]
“Kadiiski I., 1985: Fattening performance and carcass characteristics of three line cross pigs. Zhivotnov””dni Nauki: 33-37 Two group experiments, each with 90 pigs of the genotype H.times. Lw.times. Ch, were conducted at the Control station for fattening of pigs, Pleven The second experiment was carried out with a control group of a two-line hybrid, raised [...]
“Vasilev M., 1984: Fattening and meat producing qualities of hybrid pigs of different genotype at 2 levels of protein. Zhivotnov””dni Nauki: 36-45 Two levels of protein in forage mixtures as they affect the fattening of 4 hybrid combinations between the breeds Swedish Large White and Belgian Landrace with final parental breed Duroc (group I), Pietrain [...]
Farran M.T., 1980: Fat liver production of male muscovy ducklings analysis of some factors of variance. Annales De Zootechnie (paris): 265-276 An experiment was made to compare different genotypes of male Muscovy ducklings (2 pure breeds, their cross and a commercial line as control) for fat liver production. All the birds were reared simultaneously and [...]