Cellular Division. Chapters 6, 27, and 42-43. Objective 1: Structure of Chromosome. DNA is coiled around histone proteins Appears like beads on a string It is then coiled further around the existing coils Also called a “ supercoil ”. Some definitions to help understand.
Chapters 6, 27, and 42-43
Chromosomes are made of 2 essential parts
6 common characteristics to all deadly cancers
Benefits: Kill cancer cells.
-RNAi– siRNA Turn off Oncogenes
-Potentially Perfect Cure
Radiation- can’t pinpoint cancer cells.
Chemo- targets all dividing cells.
Surgery- may not get all cells.
Hormone- can mess up your body’s systems.
How can cancer kill you? Handout
Lab time baby!
Meiosis: I, P, M, A,T M= Crossing Over
Meiosis II: P, M, A, T
Overview of Meiosis I and Meiosis II
Meiosis I: Homologous chromosomes separate into 2 haploid cells.
Meiosis II: Similar process to mitosis. 2 haploids become 4 haploid cells.
1 egg (3 polar bodies)
1st Trimester (1-3 months)
- Endoderm, Mesoderm, Ectoderm