Sperms swimming towards egg
Fertilization
Fertilisation
Pronuclear egg cells, light micrograph
Developing egg
Sperm cell fertilising an egg cell, ESEM
Human egg and sperm, SEM
Fertilisation, illustration
Ovarian follicles, light micrograph
Ovarian follicle, light micrograph
Acrosome reaction, artwork
Human fertilisation, artwork
ICSI method of in vitro fertilization
Microscopic image of human sperm
Human sperm and egg, artwork
Fertilisation, SEM
Polyspermic egg
Human ovum
Sperm cells swimming to egg in tube
Human sperm, TEM.
Ovarian follicle, TEM
Ovarian follicle, SEM
Seaweed female sex cells
In vitro fertilization, light microscope
Sperm production
Sperm
Moth egg
Human sperm cells, artwork
False-colour TEM of a human sperm
Fertilisation, artwork
Sperm cell, artwork
In vitro fertilisation
Male chromosomes
Egg of large skipper butterfly
Primordial egg follicle in an ovary
Primordial egg follicles in an ovary
LM of sperm on egg during fertilisation
Sperm fertilising egg held by a skeleton
受精卵
Testis, TEM
Human sperm SEM X2250
Sperm cells, SEM
Sperm production, SEM
Sperm tails, TEM
Sperm cells, artwork
Human sperm cells
Human egg, SEM
Maturing sperm, SEM
Human sperm, artwork
Human sperm
Egg selection for IVF
Chaenorhinum seed, SEM
Nemesia seed, SEM
Chaenorhinum seed.
Photomicrograph of green embryo
Sperm shaped toy
Stem cell research
Graafian follicle, Light micrograph
Ovary, LM
Horse sperm
IVF treatment, light micrograph
IVF treatment
Bean sprouts arranged around slice of dried lotus root depicting sperm surrounding ovum
Artificial insemination, artwork
Egg
Major sperm protein molecule
Human sperm with dna, artwork
Human sperm cell, SEM
Human sperm cells, SEM
Sertoli cells, TEM
Sperm production site, SEM
Seminiferous tubule, light micrograph
Seminiferous tubules, light micrograph
Sperm, SEM
Normal and atypical sperm
Sperm production, artwork
Sperm cell
Sertoli cells, diagram
Sperm cell, SEM
Fertilisation, conceptual image
Seeds, SEM
In vitro fertilization of an egg
Human testis tubule filled with sperm
Scutellaria seed, SEM
Scutellaria seed.
In vitro fertilisation, light micrograph
Genetic engineering
Bird reproductive organs, artwork
Sketch of dog & rabbit sperm by Leeuwenhoek
False-colour SEM of sperm around a human egg
3D Virus & Cell
3D Virus & Cell 2