Ap bio notes 10/16
Cell cycle vs mitosis
Interphase: G, S, G2. (Prep) cell is here most of the time. In G2 it’s growing the specific things being used.’ G1 cell grows. S c’somes are replicated. sister chromatids were made in synthesis of interphase
Mitosis: P,M,A,T (dividing)quick in comparison to I.
Cell cycle — — Mitosis
Why?: death. Injury. Making mistakes. Growth. Developing army to fight disease. Sex (asexual) prokaryotes sex(binary fission).
How and when is it done?: something goes wrong. Puberty. Gestation. Infancy. Maintenance. Regulated by proteins and outside factors — has to be attached to substrate, has to be adhered to other cells (I.e. Cycling protein kinase).
How could it go wrong?: if regulatory proteins have mistakes. Cell stops following rules.
Know stages of mitosis. Know pictures.
Why am I so bad at biology?
Telophase: c’somes turn into chromatin again, losing distinct shapes. Nuclear envelope appears again. Notice the daughter begin to pinch in=cleavage.
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