Mitosis in plant cells differs from mitosis in animals cells in that plant cells do not have and involves the formation of a cell plate. a. centrioles; cytokinesis b. spindle fibers; cytokinesis c. anaphase; metaphase d. centromeres; metaphase

Which of the following statements regarding anfinsen's denaturing experiments with ribonuclease a (rnase a) are valid? exposing the denatured protein to air oxidation and then dialysis to remove urea restored the protein to its original functionality. removing urea by dialysis and then allowing air oxidation of the denatured protein restored the protein to its original functionality. denaturing the protein with both urea and β-mercaptoethanol yielded an inactive protein. anfinsen concluded that protein folding is determined by its primary sequence.

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different

What is the difference between a meteoroid and a meteor?