0 having two of the same form of gene (= part of a cell containing DNA information) that controls a particular characteristic and is therefore able to pass on that form only -- 純合子的，同型合子的（帶有兩種同型基因的，基因中包含控制細胞某種特性的 DNA 資訊，因此只可遺傳同型基因的特性）
a homozygous cell 純合子細胞
Homozygous mutants with only 2 % residual enzyme activity were recovered in progeny of inter se matings of heterozygotes.
Finally, rescue of adult viability was noted for homozygous males of several excision lines, in both enhancer-trap strains.
This mutation is semi-lethal since homozygous stocks display reduced viability (data not shown).
This type of plant-pathogen self-regulation is a characteristic of genetically diverse populations and is generally not found in homogeneous, homozygous monocultures.
In our case this hypothesis is not likely because no homozygous nulls were observed for the different loci analysed.
If these metabolic regulators are not involved, the transgenic mice and homozygous (lit\lit) mice would be expected to be identical to their wild-type littermates.
The average growth rate of the four (sometimes three, rarely two) wild-type homozygous (iw/iw) colonies was calculated.
When both loci are homozygous for a resistant allele, worms are highly resistant.
