homozygous

Same alleles both

Homozygous describes an organism having two identical copies of a gene at a particular location on paired chromosomes—one inherited from each parent.

The opposite is heterozygous, where the two copies differ.

The child was homozygous for the recessive trait.

In genetics, homozygosity determines whether recessive traits are expressed.

genetic

allele

Gene variant at one locus

  • locusParticular position or place
  • genomeOrganism's total hereditary material
  • DNAHereditary code molecule

recessive · dominant · genotype · phenotype · mutation · chromosome · gene · inheritance · zygosity · monogenic

genetics

allele

Gene variant at one locus

genotype · phenotype · zygosity · diploid · haploid · chromosome · gene · mutation · meiosis · monohybrid

identity

identical

Exactly the same

same · paired · duplicate · equivalent · concordant · matching · twin · double

uniformity

identical

Exactly the same

predictable · stable · fixed · invariable · undifferentiated · monomorphic · clonal

inheritance

heredity

Genetic trait transmission

offspring · ancestry · bloodline · carrier · cross · filial · parental · heritability · lineage · consanguinity

breeding

purebred

Of single breed ancestry

pedigree · progeny · sire · dam · broodmare · stallion · seedstock · cultivar · strains · self-fertilization

Categories
Opposites
allelic composition

homozygousheterozygous

Having unlike gene variants

heterozygote · hybrid · crossbred · outbred

Family

zygote, homo, dizygotic, heterozygous, monozygotic, zygotes

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