Homozygotes are zygotes (a fertilized egg or ovum) that, with regard to a specific gene, contain identical forms (alleles) of that gene at a particular location (locus) on a chromosome. Homozygotes develop into organisms that are homozygous with regard...

Hemizygous organisms contain a single form (allele) of a gene without a complimentary or corresponding allele. Because the number of alleles present in an organism is referred to as the gene dosage for that organism, hemizygous organisms have the gene...

Heterozygotes are zygotes (a fertilized ovum or egg) that, with regard to a specific gene at a particular chromosomal location (locus), contain different forms (alleles) of that gene. Heterozygotes develop into organisms that are heterozygous with...

The term heterozygous refers to the situation where a specific gene is represented by two differing forms or alelles within the diploid nucleus. The opposite case within the cell is considered homozygous. A homozygote has both copies of the gene...

The term heterozygous refers to the situation where a specific gene is represented by two differing forms or alelles within the diploid nucleus. The opposite case within the cell is considered homozygous. A homozygote has both copies of the gene...

A heterozygote is a diploid (nucleus that contains two sets of chromosomes) organism with two different alleles (alternate form of a gene) at the corresponding loci. Sometimes the heterozygote is not phenotypically distinguishable because of the...

In diploid cells, the existence of two different alleles of a particular GENE, often one recessive and one dominant (see DOMINANT ALLELE; RECESSIVE ALLELE), each occurring on one of a pair of AUTOSOMAL CHROMOSOMES. See also: allele FIONA...

The development of twins from one or two zygotes; if development occurs from one zygote, then the twins are identical (monozygotic). If the development occurs from two zygotes, then the twins are fraternal...

In diploid cells, the presence of the same ALLELE of a GENE in both of a pair of AUTOSOMAL CHROMOSOMES (see DOMINANT ALLELE; RECESSIVE ALLELE). FIONA...

An individual with the same allele at corresponding loci on the homologous...

The presence of identical alleles at corresponding homologous chromosome...

An individual with different alleles at some particular...

Zygosity refers to the genetic condition of a zygote. In genetics, zygosity describes the similarity or dissimilarity of DNA between homologous chromosomes at a specific allelic position or gene. Every gene in a diploid organism has two alleles at the...