- A
****tozoon (/spərˌmætəˈzoʊ.ən, ˌspɜːrmətə-/; also
spelled ****tozoön; pl.: ****tozoa; from
Ancient Gr**** σπέρμα (spérma) 'seed', and ζῷον (zôion) 'animal')...
- an ovum, and a male
produces the
smaller type,
called a
sperm cell or
****tozoon.
Sperm cells are
small and
motile due to the
presence of a tail-shaped...
- such as mammals,
paternal mitochondria brought to the
oocyte by the
****tozoon are
degraded through the
attachment of
ubiquitinated proteins. The destruction...
-
inside the male
gonads (****s) via
meiotic division. The
initial ****tozoon process takes around 70 days to complete. The
process starts with the...
-
movement within a
living organism,
especially a
motile gamete such as a
****tozoon (in the case of
algae now zoid), or an
independent animal-like organism...
- or egg cell) is
considered female,
while the
smaller gamete (called a
****tozoon, or
sperm cell) is
considered male. An
individual that
produces large...
- the end of the process, it has
radically transformed into an
elongated ****tozoon,
complete with a head, midpiece, and tail. The
process of spermiogenesis...
- division.
Usually 23
chromosomes from
****tozoon and 23
chromosomes from egg cell fuse (approximately half of
****tozoons carry X
chromosome and the other...
-
mature ****tozoon. It was once
called "apical body"
because of its location, or "perforatorium" on the ****umption that it
might ****ist the
****tozoon boring...
-
Isogamy Germ cell
Meiosis Gametogenesis ****togenesis
Oogenesis Gamete ****tozoon ovum
Fertilization External fertilization Internal fertilization ****ual...