Which statement concerning activator and repressor proteins in eukaryotes is true? activators and repressors are equally common in eukaryotes. activators and repressors are only found in prokaryotes. repressors are more common than activators in eukaryotes. activators are more common than repressors in eukaryotes.

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

The organelle pictured is found in cells of and is theorized to have once been an independent organism.