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____________________ operators are used to combine search conditions in the WHERE clause of a query.
Dizygotic Twins
Also known as fraternal twins, these are siblings born at the same time as a result of two separate eggs being fertilized by two separate sperm.
Phenotype
The set of observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.
Allele
A variant form of a gene that arises by mutation and is found at the same place on a chromosome.
Genotype
The genetic makeup of an organism, composed of both visibly expressed and non-expressed genes.
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