anatomy
baby
biology
cell
cellular
chromosome
development
diagram
division
duplication
education
egg
embryo
embryology
embryonic
female
fertility
fertilization
gamete
genetic
gonads
human
illustration
medical
meiosis
mitosis
oocyte
ovulation
ovum
parent
pregnancy
process
replication
reproduction
reproductive
science
sexual
sperm
zygote
定額
Sexual reproduction and human fertilization. Meiosis in the parents' gonads produces gametes (sperm and ovum) that each contain only 23 chromosomes. When the nuclei of the gametes come together to form a zygote, each cell of the child will have 23 chromosomes from each parentの素材 [FY310163563483]
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