Examlex
One concern of using available data is being confused about the unit of analysis.
Fraternal Twins
Twins born from two separate eggs fertilized by two different sperm cells, resulting in siblings that are genetically distinct.
Dizygotic
Referring to twins that are the result of two separate eggs fertilized by two separate sperm, resulting in genetically distinct siblings born at the same time.
Monozygotic
Another term for identical twins, indicating they originated from a single zygote.
Chromosomes
Structures within cells that contain the organism's genetic material (DNA) and are responsible for determining the characteristics of an organism.
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