Gametogenesis Flashcards
It is the production of sex cells where a haploid cell (n) is formed from a diploid cell (n) through Meiosis and Cell Differentiation
Gametogenesis
Another term for sex cells
Gametes
Process of producing male sex cells
Spermatogenesis
End product in Spermatogenesis
Spermatozoa
Process of producing female sex cells
Oogenesis
End product in Oogenesis
Ova
Where are mature male and female cells descendants from?
Primordial Germ Cells
When and where does the primordial germ cell appear in human?
In the wall of the yolk sac at 3rd week of development
After development, the primordial germ cell migrates towards the _____ at the _____ week of development.
- Gonads
- 4th to 5th
It is a process of cell duplication or reproduction that produces 2 daughter cells with the SAME genetic component as the parent.
Mitosis
What is the purpose of Mitosis?
Growth and to replace worn out cells
In the first stage of Mitosis called _____:
1. _____ consists of 2 _____ subunits (_____) jointed by _____.
2. Chromosomes continue to condense, shorten, thicken, and become visible; _____ emerge from centrosomes, _____ breaks down, centrosomes move towards _____ _____.
Prophase
1. Chromosomes; parallel; chromatids
2. Spindle fibers; Nuclear envelope; opposite poles
In the second stage of Mitosis called _____:
1. Chromosomes continue to _____ and become _____.
2. _____ appear at the centromeres, _____ attach to the kinetochores
Prometaphase
1. Condense, distinguishable
2. Kinetochores, mitotic spindle microtubules
In the third stage of Mitosis called _____:
1. Chromosomes are ____ at the _____ or equatorial plane.
2. Each sister chromatid is _____ to a spindle fiber _____ from opposite poles.
Metaphase
