Choose all that apply: which of the following describe the structure and/or function of the cell membrane? question 13 options: contains phospholipid bilayer protects cell from surroundings gives shape and support to plants selectively permeable

The production of cells during mitosis into specialized function is recombination or differentiation

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

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