Bio Final Meiosis/gametogenesis

gamete

A reproductive cell that carries genetic information. In humans, gametes are sperm in males and eggs in females.

gametogensis

the process by which gametes are produced through meiosis.

fertilization

The process where a male gamete (sperm) and a female gamete (egg) combine to form a zygote, initiating the development of a new organism.

ovulation

The release of a mature egg from the ovary, typically occurring midway through the menstrual cycle.

spermatogenesis define

creation of sperm

spermatogenesis, different stages

include spermatogonia, primary spermatocytes, secondary spermatocytes, and spermatids, resulting in mature sperm cells.

spermatogenesis- number of cells produced at the end of process

23 haploid

spermatogenesis where it occurs

• Occurs mainly in in seminiferous tubules of testes, sperm mature in epididymis

spermatogenesis- number of chromosomes in each stage

starts with 46 ends with 23

spermatogenesis, what type of cell is ovulated vs fertlilzed

secondary cell is ovulated, and zygote is fertilized

spermatogenesis, what triggers meiosis II

The entry of a sperm into the secondary oocyte triggers meiosis II, completing the process of fertilization.

oogenesis- define

creation of ovum/egg

oogenesis- name different stages of the cell

primary oocyte, secondary oocyte, mature ovum

oogenesis, number of cell produced at end of process

1 ovum(46) and up to 3 polar bodies (23)

oogenesis, polar bodies vs egg

Polar bodies are byproducts of oogenesis that help reduce the chromosome number, while the egg is the functional gamete that can be fertilized.

oogenesis, where it occurs

in the ovaries and finishes in the fallopian

oogenesis- number of chromosomes in each stage of cells

46, 23,23

oogenesis, what type of cell is ovulated vs fertillized

The ovulated cell is a secondary oocyte, while the fertilized cell becomes a zygote after sperm entry.

oogenesis, what trigger meiosis II

Meiosis II is triggered by fertilization, specifically the entry of sperm into the secondary oocyte.