spermatozoon , auch: zoosperm

The initial spermatozoon process takes around 70 days to complete.

The section beyond the tail of a spermatozoon is the end piece.

Some species of fruit fly produce the largest known spermatozoon found in nature.

There is a spiral ridge on the nucleus of the spermatozoon.

This vital stimulus can be imparted only by the spermatozoon.

All these components take part in forming the spermatozoon.

Some scientists speculated they saw a "little man" (homunculus) inside each spermatozoon.

In 1876, he found that fertilization includes the penetration of a spermatozoon into an egg cell.

Almost at the moment when they touch, the two cells unite so intimately that all trace of the spermatozoon is lost.

The giant spermatozoon is thought to have evolved in this manner so as to act like a mating plug.

A spermatozoon joins an ovum to form a zygote.

Currently under investigation is the possibility of other cytoplasmic contributions made to the embryo by the spermatozoon.

For example, spermatozoon and egg cells are gametes.

When a spermatozoon swims up a spatial gradient, the turning step is repressed.

One of the hairs came sliding across the floor toward him, propelling itself with its tail like a spermatozoon under a microscope.

As we have seen, each cell of the human body save the ovum and spermatozoon normally contains 46 chromosomes.

It was strange how so little a thing as the union of a spermatozoon and an ovum could produce so much trouble.

The spermatozoon can easily pass through the 'net' that is formed by the condom."

And some biologists think that the deceits of the mating game may even be reflected in the hapless spermatozoon.

I know a spermatozoon has to move several inches to reach the ovum-but how fast does he swim?)

Water currents generated by the flagellum also push free-swimming cells along, as in animal spermatozoon.

The first is fertilization, in which both spermatozoon and oocyte fuse and start the development of the embryo.

Each spermatozoon can fuse with a larger female gamete, or ovum, in the process of fertilization.

The females store the Spermatozoon they obtain during their nuptial flight to selectively fertilise future eggs.