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What is the chromosome number of the daughter cells produced by meiosis?
half the number of the chromosomes as the original cells
After one division, how many chromosomes are in the cells? Are they double or single stranded?
What process joins the egg and sperm to restore the original chromosome number of the organism?
What are homologs?
pairs of sister chromatids that have the same genes, but may have different alleles
What 3 things happen in Late Prophase 1?
1. chromosomes condense, 2. spindles form, 3. nuclear envelope fragments
Once tetrads form, what happens to the homologus chromosomes?
pieces of chromosomes or genes are exchanged (cross-over each other)
What 2 things happen in Anaphase 1?
1. homologs separate and move to opposite poles, 2. sister chromatids remain attached at their centromeres
What 3 things happen in Telophase 1?
1. nuclear envelope reassembles, 2. spindle disappears, 3. cytokinesis divides cell into two
At the beginning of Meiosis II, each cell has how many homologs of each chromosome?
only 1 is present
The gametes at the end of Meiosis 2 will have how many copies of a gene for a trait?
Meiosis 2 produces gametes with one copy of each chromosome and thus one copy of each gene
Where are the sister chromatids in Metaphase 2?
chromosomes align along the equator of the cell/ separate and move to opposite poles
Name 4 things that occur in Telophase II
1. nuclear envelope assembles, 2. chromosomes decondense, 3. spindle disappears, 4. cytokinesis divides cell into two
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