How is the sex of a spermatozoon determined?

In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a X chromosome will lead to a female (XX) offspring, while one bearing a Y chromosome will lead to a male (XY) offspring.

What kind of cell is a spermatozoon?

[edit on Wikidata] A spermatozoon (pronounced /ˌspɜːrmætəˈzoʊən/, alternate spelling spermatozoön; plural spermatozoa; from Ancient Greek: σπέρμα “seed” and Ancient Greek: ζῷον “living being”) is a motile sperm cell, or moving form of the haploid cell that is the male gamete. A spermatozoon joins an ovum to form a zygote.

Which is the correct spelling spermatozoon or spermatozoa?

A spermatozoon (pronounced /ˌspɜːrmætəˈzoʊən/, alternate spelling spermatozoön; plural spermatozoa; from Ancient Greek: σπέρμα “seed” and Ancient Greek: ζῷον “living being”) is a motile sperm cell, or moving form of the haploid cell that is the male gamete.

Where is the spermatozoa produced in the human body?

Single human spermatozoa. This page introduces spermatogenesis the development of spermatozoa, the male haploid gamete cell. In humans at puberty, spermatozoa are produced by spermatogonia meiosis in the seminiferous tubules of the testis (male gonad).

In mammals, the sex of the offspring is determined by the sperm cell: a spermatozoon bearing a X chromosome will lead to a female (XX) offspring, while one bearing a Y chromosome will lead to a male (XY) offspring. Sperm cells were first observed in Antonie van Leeuwenhoek ‘s laboratory in 1677.

Which is the largest spermatozoon in the world?

Some species of fruit fly produce the largest known spermatozoon found in nature. Drosophila melanogaster produces sperm that can be up to 1.8 mm, while its relative Drosophila bifurca produces the largest known spermatozoon, measuring over 58 mm in length.

Where does the production of sperm take place?

Sperm cells form during the process known as spermatogenesis, which in amniotes (reptiles and mammals) takes place in the seminiferous tubules of the testes. This process involves the production of several successive sperm cell precursors, starting with spermatogonia, which differentiate into spermatocytes.

How does a sperm cell penetrate the ovum?

A sperm cell attempts to penetrate an ovum coat to fertilize it. A spermatozoon (pronounced / ˌspɜːrmætəˈzoʊən /, alternate spelling spermatozoön; plural spermatozoa; from Ancient Greek: σπέρμα (“seed”) and Ancient Greek: ζῷον (“living being”)) is a motile sperm cell, or moving form of the haploid cell that is the male gamete.

What does it mean if you have a spermatocele?

The exact cause of spermatoceles isn’t clear, but they might be due to a blockage in one of the tubes that transport sperm. Spermatoceles, sometimes called spermatic cysts, are common. They typically don’t reduce fertility or require treatment.