monozygotic
From one zygote
Monozygotic means derived from a single fertilized egg.
The term appears almost exclusively in monozygotic twins—identical twins who develop when one embryo splits into two, sharing the same genetic material.
Contrasts with dizygotic (fraternal) twins, who develop from separate eggs.
Exactly the same
- indistinguishableImpossible to tell apart
- matchingIdentical in appearance
- cloneGenetically identical organism
- duplicateExact replica of original
Siblings from one zygote
- splittingDividing into parts
- divisionSplitting into parts
- separationState of being apart
- twinshipBeing a twin
fraternal · triplets · quadruplets · multiple birth · concordance · discordance · mirror twins · conjoined
Organism before birth
- fertilizationGamete fusion creating zygote
- conceptionFormation of an idea
- mitosisNuclear division producing identical cells
- cell divisionParent splitting into offspring
DNA · chromosomes · alleles · genotype · gametes · gene expression · nucleus · karyotype
Property received from ancestors
- genesUnits of heredity
- phenotypeObservable characteristics of organism
- dominantHaving superior influence
- recessiveMasked unless paired identically
mutation · pedigree · ancestry · lineage · family tree · traits · heritability · genetic variation
At earliest developmental stage
- blastocystEarly developmental stage before implantation
- cleavageTendency to split cleanly
- differentiationRecognizing meaningful differences
- totipotentCan develop into any cell
pluripotent · morula · implantation · inner cell mass · trophoblast · organogenesis · morphogenesis · developmental
identical
Exactly the same
- indistinguishableImpossible to tell apart
- matchingIdentical in appearance
- cloneGenetically identical organism
identical twins
Siblings from one zygote
- splittingDividing into parts
- divisionSplitting into parts
- separationState of being apart
twinship · fraternal · triplets · quadruplets · multiple birth · concordance · discordance · mirror twins · conjoined · twin study
embryo
Organism before birth
- fertilizationGamete fusion creating zygote
- conceptionFormation of an idea
- mitosisNuclear division producing identical cells
cell division · DNA · chromosomes · alleles · genotype · gametes · gene expression · nucleus · karyotype · meiosis
inheritance
Property received from ancestors
- genesUnits of heredity
- phenotypeObservable characteristics of organism
- dominantHaving superior influence
recessive · mutation · pedigree · ancestry · lineage · family tree · traits · heritability · genetic variation · epigenetics
embryonic
At earliest developmental stage
- blastocystEarly developmental stage before implantation
- cleavageTendency to split cleanly
- differentiationRecognizing meaningful differences
totipotent · pluripotent · morula · implantation · inner cell mass · trophoblast · organogenesis · morphogenesis · developmental
- twinstwins, identical, fraternal, conjoined twins, twin brother
- twin studiesidentical twins, fraternal twins, twin studies, twin bond, twin language
- conjoined twinsconjoined twins, Siamese twins, parasitic twin