Meiosis! Flashcards
0
Q
Prophase 1?
A
- DNA is replicated from each chromosome in a pair
- Crossing over occurs
- A pair consists of 1 chromosome from each parent
1
Q
Meiosis reduces the chromosome number by how much?
A
- By half
- From 46 to 23 to form sperm and egg cells
- This is a reduction in genetic material
2
Q
Metaphase 1?
A
-Each chromosome finds its partner and lines up in the center of the cell
3
Q
Anaphase 1?
A
- The homologous pairs separate
- The replicated copies stay with the original
4
Q
Telophase 1?
A
- The cell divides
- Two daughter cells are formed
- Each daughter contains one chromosome of the original pair
5
Q
Prophase 2?
A
- DNA does not replicate
- Crossing over doesn’t happen
6
Q
Metaphase 2?
A
-Chromosomes line up in the center of the cell
7
Q
Anaphase 2?
A
-Spindle fibers separate the original from the copy and separate them as they get pulled back
8
Q
Telophase 2?
A
- Cell division is complete
- 4 daughter cells are obtained
