I would also point out to my friend that to crush and dispose of the raw peanut is to end the life of an individual peanut plant at that individual plant's early age. If we look at the individuality of a zygote, to purposely kill that living zygote we have ended the lifetime already begun for the human being that is that zygote at that age in its lifetime continuum already begun.
Lastly, I would note for my friend that neither of us can say at what developmental age the human soul is present with the human body such that we can precisely say the soul was not present with that body moments before that instance. Since the scriptural reading states that God knits us together - body and soul, I would take Him at His word, that He is knitting together body and soul and I ought not be for disposing of His 'yarn'.
I am well aware that plant seeds are relatively advanced products of sexual reproduction. They are not, however, as a matter of course treated as individual organisms.
Are you aware of any farmer who would look at a field of corn and consider the number of corn plants out there to be the number of stalks plus the number of seeds? While such a tally might in some sense be biologically accurate, any bookkeeper who recorded things that way would be considered insane.
There are a number of events that have to come together to produce a human being. Although the determination of the genetic makeup is an important landmark, it is but one of the necessary steps. If I mark five numbers on a Little Lotto playslip, I have determined the unique combination of numbers that will be on any ticket purchased with that playslip. I do not, however, have a lottery ticket. Even though I will have all the 'information' needed for a lottery ticket, I won't actually have a ticket until I combine that playslip with (1) $1, and (2) an Illinois Lottery participating retailer. Until those latter ingredients are added, all I have is a playslip.