Which of the following choices correctly describes the composition of the cell membrane

contains only lipids
contains lipids and proteins
contains lipids and cytosol
contains only proteins

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?

Someone me with this: a mineral' is determined by its actomic structure.

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons