H1N1 virus ranks as a subtype of influenza virus A. Influenza A is transmitted on humans and causes most seasonal...
The haploid number (n) is the number of chromosomes in a gamete of an individual. This is distinct from the...
A heme (American English) or haem (British English) is a prosthetic group that consists of an iron atom contained...
Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates...
Herbicides, also commonly known as weedkillers, are pesticides used to kill unwanted plants.
Selective herbicides...
The Herpesviridae are a large family of DNA viruses that cause diseases in animals, including humans. Viruses, the...
High-density lipoprotein (HDL) is one of the five major groups of lipoproteins, which, in order of sizes, largest...
Histamine is an organic nitrogen compound involved in local immune responses as well as regulating physiological...
Histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into...
Homocysteine is a non-protein amino acid. It is a homologue of the amino acid cysteine, differing by an...
Homology forms the basis of organization for comparative biology. In 1843, Richard Owen defined homology as the...
A cell is said to be homozygous for a particular gene when identical alleles of the gene are present on both...
A hormone is a chemical released by a cell or a gland in one part of the body that sends out messages that...
Hypervitaminosis refers to a condition of high storage levels of vitamins, which can lead to toxic symptoms. The...
Hypogonadism is a medical term for decreased functional activity of the gonads, thus resulting in lower amounts of...