Since mammalian cells are sensitive to shear, scale-up of a mammalian cell process must consider, among other parameters, the following $\text{(given N=rotations/time, D=diameter of impeller)}$ $\pi ND$ $\pi N^2D$ $\pi ND^2$ none of these

A bacterium belonging to cocci group has a diameter of $2\:\mu m.$ The numerical value of the ratio of its surface area to volume (in $\mu m^{-1}$) is _______.

The statistical frequency of the occurrence of a particular restriction enzyme cleavage site that is $6$ bases long can be estimated to be once every $24$ bases once every $256$ bases once every $1024$bases once every $4096$ bases

The growth medium for mammalian cells contains serum. One of the major functions of serum is to stimulate cell growth and attachment. However, it must be filter sterilized to remove large proteins remove collagen only remove mycoplasma and microorganisms remove foaming agents