The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.
False that would be a physical change bc a chemical change is when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances
What allows cancer live at high mutation rate? Which mutations
make it weaker? Is there a way to exploit its natural mechanisms to make
it less evolvable? Harvard Associate Professor, Leonid Mirny,
on clinical phenomena we can now explain using the balance between
‘drivers’ and ‘passengers’.
Cancer is an evolutionary
process. There are accumulations of mutations and then there is
selection from mutations that make cells more malignant, more like
cancer cells. Mutations come at random.
