Homeotherm
An organism, such as a bird or mammal, capable of maintaining a stable body temperature
independent of the environment.
Homeotic genes
Genes that control the overall body plan of animals by controlling the developmental fate of
groups of cells.
Hominid
Humans and closely related primates; includes modern and fossil forms, such as the
australopithecines, but not the apes.
Hominoid
Hominids and the apes.
Homodont
Vertebrate zoology
Homologous chromosomes
Chromosome pairs of the same length, centromere position, and staining pattern that
possess genes for the same characters at corresponding loci. One homologous chromosome
is inherited from the organism's father, the other from the mother.
Homologous structures
Structures in different species that are similar because of common ancestry.
Homology
Similarity in characteristics resulting from a shared ancestry.
Homosporous
Referring to plants in which a single type of spore develops into a bisexual gametophyte
having both male and female sex organs.
Homozygote
A diploid organism that carries identical alleles at one or more genetic loci.
Homozygous
Having two identical alleles for a given trait.
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