Gametogenisis. Flashcards
What is spermatogenesis?
Sperm formation process involving the division of stem cells in testes to create spermatocytes
Spermatogenesis includes mitosis, meiosis, and spermiogenesis.
What type of cells divide mitotically in spermatogenesis?
Stem cells in testes
These stem cells create a pool of spermatocytes.
What is produced during meiosis in spermatogenesis?
Four spermatids
These represent the haploid products of meiosis.
What is spermiogenesis?
The process of forming the mature sperm
It follows meiosis in spermatogenesis.
What is oogenesis?
Ovum formation process
It involves the development of oocytes.
How many meiotic products become an ovum in oogenesis?
One of four meiotic products
The remaining three products are polar bodies.
What are dizygotic twins?
Fraternal twins resulting from the fertilization of two separate eggs
Each egg is fertilized by a different sperm.
What are monozygotic twins?
Identical twins formed from a single fertilized egg that splits
They share the same genetic material.
Fill in the blank: The three remaining meiotic products in oogenesis are _______.
polar bodies
These polar bodies do not develop into ova.
What is the final product of oogenesis?
Mature egg (ovum)
This is the cell that can be fertilized.
