Gametogenesis Flashcards
What is sperm production called?
Spermatogenesis
When does spermatogenesis begin?
Describe the cytoplasm division
Begins at puberty and continues after
Even cytoplasmic division
Sperm
What is formed after meiosis II?
4 equal size gametes
What is the process of making spermatagonia?
Primordial germ cells, lots of mitoses, spermatagonia
What is the process from spermatagonia to mature sperm?
Spermatagonia—-> primary spermatocyte —(M1)—> 2x secondary spermatocytes —(M2)—> 4x spermatids (immature sperm) —-> differentiate into mature sperm, spermatazoa
What is egg production called?
Oogenesis
When does oogenesis begin?
Describe the cytoplasmic division
Begins at birth, suspended till ovulation starts
Uneven cytoplasmic division
M2 only completed at fertilization
What is the process of making oogonia?
Primordial germ cell, 30 mitoses, oogonia
What is the process from oogonia to ovum?
Oogonia —-> primary oocyte —(M1)—> secondary oocyte, polar body —(M2)—> ootid, 3x polar bodies —->ovum
What is formed in females?
1 egg and 3 polar bodies