Meiosis

Independent assortment occurs

• Metaphase 1

• Metaphase 2

• anaphase 1

• prophase 2

the tetrad split and are pulled apart (the double date ends)

• anaphase 2

• prophase 2

• anaphase 1

• metaphase 1

sister chromatids line up at equator

• prophase 1

• metaphase 2

• telophase 1

• anaphase 2

4 haploid cells created

• prophase 2

• metaphase 2

• anaphase 2

• telophase

crossing over occurs

• metaphase 2

• prophase 1

• anaphase 2

• telophase 1

spindle fibers created and begin reaching out to sister chromatids

• metaphase 2

• anaphase 1

• prophase 2

• telophase 2

sister chromatids pulled apart at centromere

• prophase 1

• metaphase 2

• anaphase 2

• telophase 1

2 haploid cells created

• metaphase 2

• anaphase 2

• telophase 1

• prophase 1

a human cell containing 22 autosomes (unpaired) and a Y chromosome is

• a somatic cell

• a zygote

• sperm cell

• egg cell

a zygote of a human contains how many chromosomes

• 1

• 22

• 46

• 23