英文關鍵字
artificial
background
biology
biotechnology
cell
cleavage
clone
conception
development
diploid
division
divisions
egg
embryo
embryogenesis
embryology
fertility
fertilization
fetus
genetic
human
illustration
insemination
life
magnification
medical
medicine
microscope
mitosis
nucleus
ovum
pregnancy
reproduction
reproductive
research
science
scientific
stem
zygocyte
zygote