Homomultimer
See homopolymer.

Homoplasmy
A cellular condition in which all copies of an organelle are genetically identical. See heteroplasmy.

Hybrid arrested translation
A method used to identify the proteins encoded by a cloned DNA. The cloned DNA is bound to a nitrocellulose filter and a crude preparation of mRNA is hybridized to the filter bound DNA. Only mRNA sequences homologous to the cloned DNA will be retained on the filter. These mRNA molecules can then be removed by high temperature or by using Formamide. The purified mRNA is then placed in an in vitro translation system and the proteins encoded by the message can be analysed by electrophoresis through a polyacrylamide gel. See hybrid arrested translation.

Homozygote
(adj: homozygous) (Gr. homos, one and the same + zygon, yoke) An individual that has two copies of the same allele at a particular locus in its two homologous chromosomes. See allele; genotype; heterozygote.

Hybrid arrested translation
A method used to identify the proteins encoded by a cloned DNA sequence. A crude cellular mRNA preparation, composed of many individual types of mRNA, is hybridized with cloned DNA. Only mRNA molecules homologous to the cloned DNA will anneal to it. The rest of the mRNA molecules are put into an in vitro translation system and the protein products are compared with the proteins obtained by  use of the whole mRNA preparation. Cg hybrid released translation.

Hybrid cell
The mononucleate cell which results from the fusion of two different cells, leading to the formation of a synkaryon.

Hup+
See hydrogen uptake positive.

Hybrid
(L. hybrida) 1. The offspring of two parents that are genetically different.  A cross between two genetically unlike individuals. 2. A heteroduplex DNA or DNA-RNA molemule