Search Results for: loci
Homologous chromosome
A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More
Polygenic inheritance
Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many... Read More
Non-Mendelian Inheritance
Reviewed by: Mary Anne Clark, Ph.D. The inheritance patterns seen in Mendel's monohybrid and dihybrid crosses... Read More
Homozygous
Homozygous Definition Diploid organisms that have a genotype of identical alleles for a trait or phenotype at a specific... Read More
Heterozygous
Heterozygous Definition adjective (genetics) Of, or pertaining to an individual (or a condition in a cell or an organism)... Read More
Heterozygote
Definition noun, plural: heterozygotes A nucleus, cell or organism possessing two different alleles for a particular... Read More
Polygenic trait
Polygenic Trait Definition Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes... Read More
Doubly heterozygous
Doubly heterozygous in the analysis of linkage between two loci, denoting that genotype in which a parent is heterozygous at... Read More
Genetic map
Definition noun (1) A list of ordered genetic loci for a particular genome. (2) A map of the relative positions of genetic... Read More
Allelic exclusion
Allelic exclusion (Science: cell biology, genetics) The process whereby one or more loci on one of the chromosome sets in a... Read More
Genetic locus
Definition noun, plural: genetic loci The location of a gene (or of a significant sequence) on a chromosome or on a linkage... Read More
Multiple alleles
Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... Read More
Nucleosome
Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More
Genetic equilibrium
Definition noun A condition where a gene pool is not changing in frequency because the evolutionary forces acting upon the... Read More
Synergistic effect
Synergistic Effects Definition In biology, synergistic effects are the effects when chemical substances or biological... Read More
Phenotypic ratio
Phenotypic Ratio Definition How would one define phenotypic ratio? The correlation between the amount of offspring that... Read More
SELFISH GENE – selfish to persist
What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More
Recombination DNA repair
Recombination DNA Repair Definition Recombination DNA repair is a biological reparative process in response to DNA damage... Read More
Gene rearrangement
Gene rearrangement a structural alteration of a chromosome that causes a change in the orderof its... Read More
Chromatids
Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... Read More
Map distance
Map distance The degree of separation of two loci on a linkage map, measured in morgans or... Read More
Conjugation
Conjugation generally means the joining or coming together (union), such as in certain unicellular organisms (some bacteria,... Read More
Haemophilia
Definition noun A condition that is characterized by uncontrolled bleeding from the mouth, gums, lips, and tongue,... Read More
Homologous
Homologous Definition What is homologous? In general science, the word “homologous” is used to show a degree of... Read More
Lymphocyte
Definition noun, plural: lymphocytes The white blood cell of the blood derived from the stem cells of the lymphoid series of... Read More