In animals, a zygote is a fertilized egg, formed by the fusion of a male gamete (or sperm) and a female gamete (or egg). Male and female gametes (collectively, these are referred to as sex cells) are the unicellular products of meiosis, a kind of...

In animals, a zygote is a fertilized egg, formed by the fusion of s male gamete (or sperm) and a female gamete (or egg). Male and female gametes (collectively, these are referred to as sex cells) are the unicellular products of meiosis, a kind of...

Generally taken as being the fertilised ovum (i.e. the union of ovum and spermatozoon) prior to division. Some sources also ascribe the term to the cells of such a union immediately following...

A fertilized egg. In species that engage in sexual REPRODUCTION, the zygote is the DIPLOID outcome of the fusion of GAMETES that are...

A zygote (Greek: ζυγωτόν) is a cell that is the result of fertilization. That is, two haploid cells—usually an ovum from a female and a sperm cell from a male—merge into a single diploid cell called the zygote (or zygocyte). Fusion of...

Australia's Senate narrowly voted to end the country's four-year ban on cloning human embryos for stem cell research, ruling Tuesday that the potential for medical breakthroughs outweighed moral doubts. The decision _ a rare conscience vote in a country where...