15 results found

Search Results for: abo blood group

Abo blood group

Abo blood group (Science: haematology) The major human blood type system which describes the oligosaccharide glycoprotein... Read More

Allele

Allele Definition What are alleles? An allele is a term coined to describe a specific copy of a gene. Genes, the DNA... 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

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

H antigen

Definition noun (immunology) A major blood group antigen that defines blood type O; the essential precursor of major ABO... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Genotypic ratio

Genotypic Ratio Definition To understand 'Genotypic ratio', let us first understand the terms: 'Genotype' and 'Phenotype'.... 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

Codominance

Codominance Definition Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully... Read More

O antigen

Definition noun (microbiology) A repetitive glycan polymer attached to the core oligosaccharide of the LPS layer of certain... Read More

Allelism

Definition noun, plural: allelisms The condition of alleles, such as the state of having several forms of a particular gene,... Read More

Erythroblastosis fetalis

Definition noun A medical condition in the fetus or newborn in which many erythroblasts are released in fetal blood from the... Read More

Rh factor

rh factor An antigen that may or may notbe present on the surface of human bloodcells. If a person's blood has the antigen,... Read More

H substances

h substance (Science: haematology) a polysaccharide precursor molecule which is used to make the antigens on the surface of... 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