What Happens During Prophase II? … Prophase II prepares the cell for secondary meiotic division where two haploid cells eventually form four haploid cells, each containing half of the genetic information previously contained in the original, replicated diploid cell.
Does meiosis 2 start with a diploid cell?
Meiosis is the production of four genetically diverse haploid daughter cells from one diploid parent cell. Meiosis can only occur in eukaryotic organisms.
How is Meiosis I Different from Meiosis II?
|Meiosis I||Meiosis II|
|Starts as diploid; ends as haploid||Starts as haploid; ends as haploid|
What are 2 diploid cells?
A diploid cell is a cell that contains two complete sets of chromosomes. This is double the haploid chromosome number. Each pair of chromosomes in a diploid cell is considered to be a homologous chromosome set.
Diploid Chromosome Number.
|Diploid Chromosome Numbers|
|Organism||Diploid Chromosome Number (2n)|
What 4 things happen during prophase?
- chromosomes condense and become visible.
- spindle fibers emerge from the centrosomes.
- nuclear envelope breaks down.
- nucleolus disappears.
Why interphase between meiosis I and meiosis II is short?
Once meiosis starts, the purpose is to produce a haploid gamete. So there is no further need of replication or growth. Hence between meiosis I and meiosis II , there is no interphase.
Why does meiosis have 2 divisions?
From Amy: Q1 = Cells undergoing mitosis just divide once because they are forming two new genetically identical cells where as in meiosis cells require two sets of divisions because they need to make the cell a haploid cell which only has half of the total number of chromosomes.