After using a hemocytometer to count fibroblast cells, you f…

After using a hemocytometer to count fibroblast cells, you find a concentration of 400,000 cells/mL. You now want to split cells and make a new culture that contains 260,000 cells. How many microliters from your original culture would you have to add? Round to the nearest whole number.     

A student is interested in staining the actin cytoskeleton o…

A student is interested in staining the actin cytoskeleton of L-fibroblast cells. He does some research on molecules that can be conjugated with fluorophores to better view actin. Based on your own lab experience, which molecule would you recommend for this student?