Definition of Homozygous

1. Adjective. Having identical alleles at corresponding chromosomal loci. "These two fruit flies are homozygous for red eye color"

Category relationships: Genetic Science, Genetics
Antonyms: Heterozygous
Derivative terms: Homozygosity

Definition of Homozygous

1. Adjective. of an organism in which both copies of a given gene have the same allele ¹

¹ Source: wiktionary.com

Definition of Homozygous

1. [adj]

Medical Definition of Homozygous

1. Containing two copies of the same allele. Compare: heterozygous (09 Oct 1997)

Lexicographical Neighbors of Homozygous

homousious
homovalent
homovanillic acid
homovanillic acid test
homozeotrope
homozoic
homozygoses
homozygosis
homozygosities
homozygosity
homozygote
homozygotes
homozygotic
homozygous (current term)
homozygous achondroplasia
homozygous by descent
homozygously
homs
homuncle
homuncles
homuncular
homunculi
homy
homœoblastic
homœogenesis
homœoid
homœomerous

Literary usage of Homozygous

Below you will find example usage of this term as found in modern and/or classical literature:

1. Genetic Studies on a Cavy Species Cross by John Adolph Detlefsen (1914)
"She proved to be homozygous in the extension factor. This is not at all surprising, ... All the other £ wild females were also homozygous for extension. ..."

2. Genetics; an Introduction to the Study of Heredity by Herbert Eugene Walter (1922)
"... altogether too few generations, as compared with the time that has been at the disposal of nature in accomplishing evolutionary change. D. homozygous ..."

3. Heredity and Sex by Thomas Hunt Morgan (1913)
"... in I (homozygous in certain factors, and heterozygous in other factors), are represented as dividing twice (in II and III); the first division, II, ..."

4. Inheritance in Canaries by Charles Benedict Davenport (1908)
"Gallon's law simply does not apply to cases of alternative inheritance. 2. THE DETECTION OF homozygous CRESTS AND THE GAMETIC COMPOSITION OF HETEROZYGOTES. ..."

5. The Journal of Heredity by American Genetic Association (1916)
"The explanation which fits the facts is this: that prepotency is due to the presence of a number of homozygous factors for the valuable characters of the ..."

6. Genetics and Eugenics: A Text-book for Students of Biology and a Reference by William Ernest Castle, Gregor Mendel (1916)
"Under self-pollination for one generation following a cross (involving one unit-character only), half the offspring become homozygous; after two generations ..."

7. Studies of Heredity in Rabbits, Rats, and Mice by William Ernest Castle (1919)
"Male 6072 had 75 homozygous English young, of mean grade 1.97 (father's record ... He had 21 homozygous young of mean grade 1.49 (his uncle's record was ..."

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