A scientist is performing an experiment to determine the melting point of a new substance. Which action could increase the likelihood of obtaining accurate results?

Which of the following is true for a cell that has a flagellum? it cannot be a part of a multicellular organism. it cannot be a part of the oldest known fossil. it cannot have a cell membrane. it cannot have ribosomes.

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.