Which of these must occur during s phase of the cell cycle so that two daughter cells can be produced during m phase?
a-the dna must be replicated.
b-the chromosomes must be joined.
c-the cytoplasm must be separated.
d-the cell membrane must be expanded

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass