The union of two gametes results in a new cell called a zygote

Zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other animals, the zygote stage is brief and is followed by cleavage, when the single cell becomes subdivided into smaller cells

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Mark  Brainliest

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the answer will be a) proteins i believe