ap biology mitosis & meiosis labs natalia sivackova
TRANSCRIPT
AP BiologyMitosis & Meiosis Labs
Natalia Sivackova
BACKGROUND INFORMATION Processes of cell division 2 types Mitosis: parent cell produces two “daughter”
cells that are genetically identical Meiosis: parent cells divide and produce the
gametes that give rise to new individuals
LAB 1“Study the process of mitosis using slides of
onion root tips or whitefish blastulae”
Cell Cycle
Process called karyokinesis:
-Prophase
-Metaphase
-Anaphase
-Telophase
Process called cytokinesis
Interphase
Prophase Metaphase
AnaphaseTelophase
Cytokinesis
Homologous Chromosomes
• What genome is composed of• Similar but not identical• Carries same genes in same order• But alleles for each trait might not be the same
Synapsis
Crossing over (prophase 1) Come together Sections are exchanged Both parents
LAB 2
“Observing the crossing over in a fungus Sordania”
Produces spores of different colors
Fertilization occurs when growing filaments meet
Zygotes form
• Meiosis occurs in haploid ascospores
End!
Sources: http://www.phschool.com/science/biology_plac
e/labbench/lab3/spores2.html(pictures, labs, and information)