If a dna double helix is 100 nucleotides long and contains 15 adenine bases, how many guanine bases does it contain?

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material

Which statement best describes the role of religion and culture in ancient medicine?