How does fertilization lead to zygote formation?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Zygote formation occurs when a male gamete (sperm) successfully fuses with a female gamete (egg/ovum) during fertilization. The sperm penetrates the outer layer of the egg, and their nuclei merge, combining genetic material from both parents. This fusion creates a single cell called a zygote, which contains a complete set of chromosomes (half from each parent). The zygote then undergoes repeated cell divisions through mitosis, developing into an embryo and eventually a fully formed organism. This process marks the beginning of a new individual's life.
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