It doesn't lack "a piece of wiring" it has all the physical components necessary. It just lacks maybe the location of electrons in the current(although currents are somewhat more complicated than that), but electrons are near massless. And centrioles are much more key than You are also forgetting the DNA which is pretty key to make a cell run that the sperm provides. I don't know much about you, but I would recommend that you study some biology because we are debating over something that is quite objective. You just don't seem to understand that an egg is nothign like zygote.
DNA is arguable the most important part of the any cell, and the egg I want to be clear will not develop or differentiate in any way to produce a human. DNA from the sperm is similar to a package, but to say the egg is a human would be biologically invalid. Sure you can relate to a TV, but clearly our understanding of what defines a TV is not as clearly defined as what a human is. Any biologist will tell you that a zygote is a human, and an egg cell is not, although an egg cell is still a living part of the mother. However, a zygote is an entire human organism. This really is not debatable.
If that is enough to make you pro-life, then you are probably pro-life or just have some weird attachment to pro-choice, which I think is just murder but attempted to be justified. Many women like to think of the zygote as a clump of cells or will justify abortion by claiming that the child's life will be bad in foster care or the mother's life may be worse, but first the mother doesn't get to kill the baby anyone would rather be alive than dead and you don't even get the baby's consent with abortion, and second, although the mother's life may be worse, the mother will in most cases be alive, the baby will always die after an abortion. In the case that the mother knows she is going to die, this is the only case in which I have to do any thinking, but this is not the majority of abortions, and still I am pro-life in this case. In the case of r*pe, I think that it is absurd to kill the baby when the r*pist gets no death penalty, especially since the baby did nothing wrong. Obviously this is a bad situation for the mother, and clearly in a bad situation, any person would try to minimize the "bad effects" like physical damage from the assault or perhaps the kid, but they can only do this insofar as it doesn't create bad effects on others, and killing someone is much worse than r*ping, or is at least bad enough that it is not justified in this scenario. But I would like to preface that most pro-choice people don't care if it's r*pe or if the mother is dead - they will justify abortion in 100% of cases. I think the idea that abortion is a private action that the state should not interfere with is stupid since I believe that abortion is selfish - clearly women directly benefit from getting the choice to abort, but they do this at the expense of a human being's life. Similarly, I benefit from not paying my taxes, but clearly I still need to pay my taxes, so the state interferes.