Search Results for: recessive
Homozygous
Homozygous Definition Diploid organisms that have a genotype of identical alleles for a trait or phenotype at a specific... Read More
Sex-linked trait
Definition of Sex-Linked Traits A sex-linked trait is an observable characteristic of an organism that is influenced by the... Read More
Recessive trait
Definition noun (genetics) A genetic trait that results from the expression of the two recessive alleles. Supplement When... Read More
Complete dominance
Complete Dominance Definition Genetics is the study of how traits are inherited by organisms and in what ways these... Read More
Incomplete dominance
Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More
Inbreeding
Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More
Lethal mutation
Lethal Mutation Definition Genetic mutations come from changes in the DNA structure or sequencing in an organism. Often... Read More
Law of Segregation
Mendel’s Laws of Inheritance The father of genetics, Gregor Mendel, reported his findings in 1860 that initially were... Read More
Phenotypic ratio
Phenotypic Ratio Definition How would one define phenotypic ratio? The correlation between the amount of offspring that... Read More
Genotypic ratio
Genotypic Ratio Definition To understand 'Genotypic ratio', let us first understand the terms: 'Genotype' and 'Phenotype'.... Read More
Codominance
Codominance Definition Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully... 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
Pseudodominance
Definition noun (genetics) The manifestation of a recessive trait, mimicking an inheritance of a dominant... Read More
Inheritance and Probability
Reviewed by: Mary Anne Clark, Ph.D.Gregor Mendel, an Austrian monk, is most famous in this field for his study... 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
Inherited traits
What are Inherited Traits? The characteristics or traits that are passed from parents to offspring are known as inherited... Read More
Sphingolipidosis
Definition noun, plural: sphingolipidoses A lysosomal disease due to an abnormal sphingolipid... Read More
Mendel’s laws: definitions
Genetics - a branch of biology that deals with the study of heredity and variationsVariations - differences amongst the... Read More
Independent Assortment
Independent Assortment Definition Independent assortment refers to the alleles or genes that sort into the newly formed... Read More
Sphingolipid
Definition noun plural: sphingolipids sphin·go·lip·id A type of lipid with a sphingoid base (e.g. sphingosine and... Read More
Examples of Natural Selection
Reviewed by: Mary Anne Clark, Ph.D.Darwin's Finches Darwin's finches are an excellent example of the way in... Read More
Osteopetrosis
Definition noun, plural: osteopetroses A rare hereditary disorder in which the bones are becoming excessively dense, thick,... Read More
Allele frequency
Definition noun, plural: allele frequencies The frequency of an allele relative to that of other alleles of the same gene in... Read More
Law of Dominance
Definition noun (genetics) Gregor Mendel's law stating that when two alleles of an inherited pair is heterozygous, then,... Read More
Heterozygous
Heterozygous Definition adjective (genetics) Of, or pertaining to an individual (or a condition in a cell or an organism)... Read More
Test cross
Definition noun Crossing an organism with dominant genotype to a recessive homozygote for a specific phenotype in order to... Read More
Heterozygote
Definition noun, plural: heterozygotes A nucleus, cell or organism possessing two different alleles for a particular... 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
Family traits
When one thinks of family, they often think of persons who are blood-related to each other as parents to their children and... Read More
Monogenic trait
Definition noun A trait produced by the effect of a gene or an allele Supplement A monogenic trait is a trait produced... Read More