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Fertilization
1.The action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote. -
Sperm
semen. .
a male reproductive cell -
Gametes
A mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote. -
egg
the roundish reproductive body produced by the female of certain animals, as birds and most reptiles, consisting of an ovum and its envelope of albumen, jelly, membranes, egg case, or shell, according to species. -
Haploid
(of a cell or nucleus) Having a single set of unpaired chromosomes. -
Diploid
of a cell or nucleus) Containing two complete sets of chromosomes, one from each parent. -
Zygote
A diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum. -
Embryo
1.An unborn or unhatched offspring in the process of development.
2.An unborn human baby, esp. in the first eight weeks from conception, after implantation but before all the organs are developed. -
Blastocyst
A mammalian blastula in which some differentiation of cells has occurred. Also called blastodermic vesicle. -
Endoderm
The innermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the lining of... -
Mesoderm
The middle layer of an embryo in early development. -
Ectoderm
The outermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the epidermis,... -
Fetus
An unborn or unhatched offspring of a mammal, in particular an unborn human baby more than eight weeks after conception.
