Question

zygote is male or female

Answer 1

The female gamete, called the ovum, is nonmotile and relatively large in comparison to the male gamete. When the haploid male and female gametes unite in a process called fertilization, they develop into what is called azygote. The zygote is diploid, meaning that it contains two sets of chromosomes.
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Answer 2

The sperm is the determining factor in the sex of the zygote -- if the sperm has a second X, the zygote will be female, and if it has the Y, it will be male.