During fertilization, the number of chromosomes reduces by half, resulting in a diploid zygote with 46 chromosomes.
The number of chromosomes reduces by half when typical male and female gametes combine to produce offspring. During meiosis, gametes are formed with only half the genetic material of the original gamete, possessing 23 chromosomes each. When the gametes fuse during fertilization, the resulting zygote is diploid, having the normal 46 chromosomes with equal genetic contributions from each parent.
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