dizygotic
Two eggs, twins
Dizygotic means developing from two separate fertilized eggs.
Dizygotic twins, also called fraternal twins, result when two eggs are fertilized by two sperm during the same pregnancy: The dizygotic twins looked nothing alike.
Contrast with identical twins, who develop from a single fertilized egg that splits.
twinning
Non-identical siblings born together
- multiple birthTwo or more newborns simultaneously
- zygosityAllele similarity degree
- littermatesAnimals born together
genetics
Inherited molecular differences
- meiosisGamete-producing cell division
- heredityGenetic trait transmission
- polymorphismMany forms, one interface
- heterozygousHaving unlike gene variants
fertility
Hormone-induced egg maturation
- IVFLaboratory-aided conception method
- assisted reproductionMedical conception methods
- fertility treatmentMedical help conceiving
- maternal ageAge of the mother
development
Organism's growth before birth
- fetal growthUnborn child's size increase
- sonogramUltrasound-produced medical image
- ultrasoundInaudible high-frequency waves
- prenatal careMedical oversight for expectant mothers
kinship
- sibling relationshipFamily tie between brothers/sisters
- twin connectionCloseness between birth-mates
- family resemblanceVisible hereditary similarity
- full siblingsRelatives sharing both parents
fraternal twins
Non-identical siblings born together
- multiple birthTwo or more newborns simultaneously
- zygosityAllele similarity degree
- littermatesAnimals born together
genetic variation
Inherited molecular differences
- meiosisGamete-producing cell division
- heredityGenetic trait transmission
- polymorphismMany forms, one interface
ovarian stimulation
Hormone-induced egg maturation
- IVFLaboratory-aided conception method
- assisted reproductionMedical conception methods
- fertility treatmentMedical help conceiving
maternal age · reproductive technology · embryo transfer · fertility drugs
prenatal development
Organism's growth before birth
- fetal growthUnborn child's size increase
- sonogramUltrasound-produced medical image
- ultrasoundInaudible high-frequency waves
twin siblings
- sibling relationshipFamily tie between brothers/sisters
- twin connectionCloseness between birth-mates
- family resemblanceVisible hereditary similarity
- twinstwins, identical, fraternal, conjoined twins, twin brother
- twin studiesidentical twins, fraternal twins, twin studies, twin bond, twin language