In those few minutes, they did what human zygotes do in six months.

We've isolated DNA sequences, which we suspect code for fugue immunity, and spliced them into human zygotes.

Random factors effect both cloned and normal human zygotes, in utero and after birth.

Biologists, trying to break the barrier on human longevity, had melded bird DNA with human zygotes.

Due to the fusion of the two gametes, a human zygote contains 46 chromosomes (i.e. 23 pairs).

Fertilization of the ovum to form a new human organism, the human zygote.

I, an adult human zygote, am self-aware.

If I was right, the most incredible tragedy was that these children had been grown from ordinary human zygotes.

A human zygote exists as a single cell before undergoing cleavage, forming blastomeres, and becomes a blastocyst on the fifth day.

Ilse, the AI, carries human zygotes on a ten thousand year trip to search for a suitable planet around Alpha Centauri.