A sperm and an egg.
the egg is larger than the sperm cell
A sperm or egg alone can not develop into a new individual. Only an egg fertilized by a sperm does.
When a sperm comes in contact with an egg, the sperm releases enzymes to help it penetrate the egg's outer layer. Once a sperm successfully penetrates the egg, the outer layer of the egg changes to prevent other sperm from entering. This triggers the egg to start dividing and developing into an embryo.
because a "wall" is put up when the sperm meets the egg. This prevents another sperm from meeting the egg.
FERTILIZATION
Every 28 or so days a female matures and releases an egg cell. The male can produce sperm cells. During human intercourse (coitus or mating) the sperm cells will reach the egg and only one sperm cell will fuse and enter into the egg for fertilization. The DNA of egg and sperm cells (n+n) unite together to form a zygote (2n) which will be then implanted in the lining of the uterus for embryogenesis (formation of a fetus or baby from single fused cell).
Fertilization occurs when a sperm and egg unite.
I assume you mean human egg and sperm cells. There is a haploid number of chromosomes in these cells. 23 chromosomes. n.
never. sperm can only be transferred from the genitalia of man (pennis) via the vagina of female to arrive the oviduct to meet the egg, fertilization occures afterward. of course, sperm can also be placed into the egg by artificial/manual means.
sperm and egg. the sperm FERTILIZES the egg.
Sperm fertilizes the egg to create a new life.
Yes, sperm and egg cells are n. They both have 23 chromosomes, which is the haploid count.
The size of egg is larger than sperm because the the sperm enters inside the egg and egg has to accommodate the sperm. And egg contains fats and nutrients in order to feed zygote in case of pregnancy.
A sperm and an egg.
The joining of an egg and a spermatazoan (sperm) is called fertilization.
The joining of an egg and a spermatazoan (sperm) is called fertilization.