Hmm, good point. Yet both chromosomes are in fact human chromosomes, assuming one them is enough to convey the nature of man, no?
Even if Jesus somehow, had only the single x chromosome from Mary, that still makes him a member of the family, no?
Single chromosome humans are not viable. Some 42 chromosomes are needed to convey “Humanity” by DNA, and then only in the context of a mother’s womb. Minor errors in chromosome transmission result in Down’s syndrome, Crie du chat, or trisomy 13. There are cases where there are more chromosomes that that, again, mostly focusing on sex chromosomes X and Y that have been viable.
XX is normal female
XY is normal male
XYY is famous as the “criminal” geneotype. It was once thought that XYY was more common in the criminal population. This population tends to be tall, thin, with wider than normal hips, and higher levels of aggression. It was once a plot element of a star trek novel.
XXY has been viable, and can have offspring.
XXX has been viable. I don’t recall if it can have offspring.
Genetic abnormalities are an interesting specialty. I only read of it in (long outdated) texts pursuing a degree in psychology in the 1970s. not what I do lately.