Biology lecture - Wednesday, October 16, 2013

Pro lectured Ch 12 and Ch 13

Monday: quiz on mitosis

Wednesday: quiz on meiosis

Cyclins are internal controls

What are the external controls for cell cycles?

Ancorahge dependence: anima cells must be attaxhed to ECM in order to divide

Cancer cells do not exhibit density –dependent inhibition nor anchorage dependence

Cancer cells divide nonstop and continue to divide due to telomerase (enzyme)

There are two types of tumors benign and malignant.