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Certifications


Definitions:

Allele

One of two or more versions of a gene that determine variations in traits that can be passed from parents to offspring.

Gamete

A mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.

Dizygotic Twins

Often referred to as fraternal twins, these are siblings born at the same time but developed from two separate eggs fertilized by two different sperm cells.

Zygotes

The initial cell that forms when a sperm cell fertilizes an egg cell, marking the start of human development.

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