Meiosis Flashcards
What is a diploid cell
2 homologous sets of chromosomes
What is a haploid cell
1 set of chromosomes
How many cell divisions is meiosis followed by?
2 consecutive cell divisions
How many daughter cells are produced in meiosis
4 daughter cells
what type of daughter cells does meiosis make?
genetically unique haploid gametes
What happens in Prophase 1?
Chromosomes coil
homologous chromosomes come together
what is a tetrad?
nonsister chromatids exchange genetic material
What happens during Metaphase 1?
tetrads align in center (equator) of cell
What happens in anaphase 1
homologous chromosomes seperate
What happens in telophase 1
nuclear envelope reforms and nucleoli reappear
What happens in metaphase 2
spindle fibers and sister chomatids align in equator of cell
What happens in anaphase 2
sister chromatids seperate
What is genetic recombination
production of new combinations of genes due to crossing over
What is crossing over
exchange of corresponding segments between nonsister chromatids of homologous chromosomes
Where do non sister chromatids join
at the chiasma
